Changes to chatStore.ts:
- stopStreaming(): Keep lastMessageNeedsSpace = true (don't remove spacer)
- addMessage(): Set lastMessageNeedsSpace = false on user messages
- clearMessages(): Reset lastMessageNeedsSpace = false

Result: Spacer now stays after streaming completes, preventing scroll jump.
Only removed when next user message arrives.

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

Also disabled stream_tokens for sendApprovalResponse method.
All streaming now disabled on Android/iOS:
- sendMessageStream: Platform.OS === 'web'
- sendApprovalResponse: Platform.OS === 'web'

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

React Native doesn't support Web Streams API required by SDK streaming.
- Web: stream_tokens = true (streaming works)
- Android/iOS: stream_tokens = false (fallback to non-streaming)

This matches documented limitation in project memory.

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

SDK v1.0 requires type: "message" field on message objects.
This was the missing piece - letta-code includes it, co didn't.

Now matches exact letta-code working format:
- type: "message"
- role: "user"
- content: [text, image]
- mediaType (camelCase)
- no include_pings

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

Changes to match working letta-code example:
1. Reverted media_type → mediaType (camelCase)
2. Disabled include_pings parameter

letta-code uses SDK v1.0-alpha.15 with mediaType (camelCase)
and it works, so copying that exact format.

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

Haiku 4 DOES support vision/images. The server crash was due to
a bug in letta-cloud utils.py (now fixed in ea5b1c9a5).

Once server deployed, Haiku will work with images.

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

Haiku 4 doesn't support vision/images, causing the server crash.
Changed model: claude-haiku-4-5 → claude-sonnet-4-5

Users need to click 'Refresh Co' button to recreate agent with new model.

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

SDK v1.0 requires snake_case property name for image sources.
Changed: mediaType → media_type

This was the final piece! Images should now work with streaming.

Credit: Charles's fix in letta-code PR #36

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

Phases 1-6 complete:
✅ Client initialization (Letta, apiKey, baseURL)
✅ Method renames (stream(), update())
✅ snake_case parameters
✅ tool_calls array
✅ Pagination .items
✅ Date handling

❌ Images still fail with 422 validation error
- Server rejects multimodal content array
- Even with SDK v1.0-alpha.15
- May need server update or different approach

Regular messages and tool calls work perfectly.

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

SDK v1.0 returns message.date as ISO string, not Date object.
Handle both formats for compatibility.

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

Breaking changes applied:
- Client init: LettaClient → Letta, token → apiKey, added baseURL
- Method renames: createStream() → stream()
- Parameter names: camelCase → snake_case (stream_tokens, include_pings, etc)
- Tool calls: tool_call → tool_calls (array)
- Message types: Handle both messageType and message_type
- Pagination: All list methods now access .items property
- Removed deprecated use_assistant_message parameter

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

On mobile web, position absolute does not account for viewport shrinking
when keyboard appears. Changed to position fixed on web so input stays
above keyboard in the visual viewport.

Native iOS/Android keep position absolute (KeyboardAvoidingView handles it).

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

Created formatToolCall utility used by both:
- lettaApi.ts (historical messages from server)
- useMessageStream.ts (streaming messages)

Now formats consistently as: web_search(query="poetry", num_results=10)
Instead of: web_search({"query":"poetry","num_results":10})

Simplified extractToolArgument - no more JSON extraction, just regex.

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

Server sends: tool_call.arguments = '{"query": "poetry"}'
We format as: content = 'web_search({"query": "poetry"})'

Updated extractToolArgument to extract JSON from inside parens.
Now search labels show: "(co searched for poetry)"

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

Streaming stores args as JSON, but the UI expects Python-style format like:
web_search(query="poetry", num_results=10)

Now converts JSON args to formatted string when creating permanent messages,
matching what the server sends for non-streaming messages.

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

Instead of "(co is searching the web)", now shows:
"(co is searching for poetry)"

Extracts query argument from tool call args (handles both JSON and Python formats).

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

The issue: streaming stores arguments as JSON string, but parseToolCall
expected an object. Added JSON.parse when arguments is a string.

Now tool calls display properly for both:
- Historical messages (already formatted)
- Streaming messages (JSON string → parsed → formatted)

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

The grouping logic was only checking for separate reasoning_message objects,
but streaming creates messages with reasoning as a field. Now it checks both:
1. Separate reasoning messages (server non-streaming format)
2. reasoning field on the message itself (streaming format)

This is a 2-line fix that makes reasoning work in both cases.

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

- Completely rewrote README: removed emoji, focused on core concept of co as thinking partner
- Added open source link to login screen (links to github.com/letta-ai/co)
- Fixed Refresh Co error handling: catch 404 errors and continue with agent recreation

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

- Removed rainbow animation from "co" text in empty state (solid color)
- Fixed blue focus outline on input by restoring outline: none
- Updated you block: added intro, moved update frequency to description
- Removed sleeptime agent deletion from Refresh Co button
- Rainbow border animation on focused input still works

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

- Image uploads: Text must come FIRST, then image (TypeScript SDK requirement)
- Image uploads: Use mediaType (camelCase) for TypeScript SDK
- Updated 'you' memory block from third person to second person
- File upload functionality preserved

🐾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta <noreply@letta.com>

- Remove all internal borders for cleaner, modern appearance
- Add delayed fade-in animation for sidebar content during expansion
- Keep sidebar open when navigating between sections on desktop
- Maintain auto-close behavior on mobile overlay for better UX
- Simplify styling and eliminate border alignment issues

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

- Add screen width detection using useWindowDimensions
- Wide screens (≥768px): sidebar pushes content with animated width
- Narrow screens (<768px): sidebar overlays content with backdrop
- Improved animation timing (200ms) with fade effects
- Auto-close sidebar on mobile after menu selection
- Maintain all existing functionality across both modes

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

UI Changes:
- Moved You/Chat/Knowledge from bottom navigation row into sidebar menu
- Header now only shows "co" logo (no separate tab row)
- Made header more compact with reduced padding and smaller fonts
- Sidebar menu order: You, Chat, Knowledge, Settings, Light Mode, Open in Browser, Refresh Co, Logout
- Active view now highlighted in sidebar

Space savings:
- Removed entire bottom navigation row
- Reduced header padding from 12px to 6px top/bottom
- Smaller "co" logo: 36pt -> 28pt
- Cleaner, more minimal header design

Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

When the memory tool is called with str_replace command, now shows
'(co updated its memory)' instead of '(co recalled)' for more accurate
labeling.

Detects str_replace by checking if the tool arguments contain
'str_replace' or 'command: str_replace'.

Moved the tool details info icon from bottom-right of the message to the
header row, positioned to the left of the chevron. This is cleaner and
more intuitive.

Layout is now:
(co recalled) ⓘ ∨

Changes:
- MessageGroupBubble: Added tool details button in header with state
- ToolCallItem: Accepts showToolDetails prop from parent (no local state)
- Removed bottom-right positioning, now controlled by header button

Applied same styling as copy button (opacity 0.3, padding 8, border radius 4)
for consistent visual appearance.

Removed the inline '> memory()' preview which was cluttered and not helpful.
Now shows a clean info icon in the bottom right that expands to show the
full tool call details when clicked.

This is much cleaner and follows standard UI patterns for showing
additional details on demand.

Added new setting to hide tool call results (off by default) since they're
usually just confirmation messages that aren't useful to see.

Also improved overall compactness:
- Reduced padding in reasoning containers (12→8 vertical, 16→12 horizontal)
- Reduced line height in reasoning text (22→20)
- Made tool call text smaller (13→12px) and lighter (opacity 0.7)
- Reduced spacing around embedded tool call headers (4→2 padding, 8→4 margin)

Changes:
- App.new.tsx: Added showToolResults state (default false)
- SettingsView: Added toggle for Show Tool Results
- ChatScreen: Pass showToolResults to MessageGroupBubble
- MessageGroupBubble: Pass showToolResults to ToolCallItem, tighter spacing
- ToolCallItem: Hide result section when showResult=false, tighter spacing

When a tool call is collapsed in embedded mode (shown in MessageGroupBubble),
now displays just 'memory()' instead of the full pretty-printed arguments.
Expands to show full arguments when clicked.

The issue was that tool_call and assistant chunks could arrive without
a preceding reasoning_message, causing them to be rejected. Also, we
weren't detecting message boundaries on tool_call ID changes.

Changes:
- accumulateToolCall: Create new message if no current or ID mismatch
- accumulateAssistant: Create new message if no current or ID mismatch
- useMessageStream: Detect ID changes on both reasoning AND tool_call

This fixes the issue where multiple tool calls were being split into
separate message groups instead of accumulating into one.

Completely redesigned streaming message accumulation to fix persistent
issues with messages disappearing, flickering, and being replaced during
streaming.

Key changes:
- Simplified streaming state to single accumulating message + completed array
- New message boundary detection: finalize on reasoning_message ID change
- Display both completed and current messages simultaneously (no more "one slot")
- Convert streaming messages to permanent format only after stream completes
- Remove server message fetching - build from stream data only

New architecture:
- currentStreamingMessage: single message being accumulated
- completedStreamingMessages[]: finished messages (stream still active)
- Simple API: accumulateReasoning, accumulateToolCall, accumulateAssistant

This follows the Letta streaming protocol correctly:
- Chunks are DELTAS (incremental, not full text)
- Reasoning + content share same message ID
- New reasoning with different ID = previous message complete

Files changed:
- src/stores/chatStore.ts: New StreamingMessage interface, simple accumulation
- src/hooks/useMessageStream.ts: Dead simple chunk handler with ID-based finalization
- src/hooks/useMessageGroups.ts: Display both completed and current streams
- src/screens/ChatScreen.tsx: Auto-expand reasoning blocks
- STREAMING_ANALYSIS.md: Complete documentation of streaming behavior

This resolves days of streaming issues with a simpler, more correct implementation.

Three critical fixes for message display and scrolling:

1. Message Grouping - Use step_id for tool call groupKeys
- Multiple tool calls can share the same message ID
- Each tool call has a unique step_id
- Changed groupKey from ${id}-tool_call to ${stepId}-tool_call
- Prevents tool calls from collapsing into single group in FlatList

2. Streaming Tool Calls - Show all tool calls during streaming
- Previously only showed first tool call (state.toolCalls[0])
- Now creates separate MessageGroup for each streaming tool call
- Each gets unique groupKey: streaming-tool_call-${toolCall.id}
- Tool calls accumulate in list instead of replacing each other

3. Reasoning Accumulation - Clear reasoning on phase transitions
- Fixed stored messages: Use LAST reasoning for tool calls when multiple exist
- Fixed streaming: Clear accumulated reasoning when first tool call arrives
- Prevents reasoning from assistant phase bleeding into tool call phase

4. Smart Scroll Behavior - Only auto-scroll when user is at bottom
- Tracks scroll position to determine if user is near bottom (100px threshold)
- Only auto-scrolls on content changes if user was already at bottom
- Prevents unwanted scroll jumps when streaming completes
- Allows manual scroll up to read history without interference

Technical details:
- createMessageGroup now selects reasoning intelligently based on message type
- createStreamingGroups returns array instead of single group
- useScrollToBottom tracks isNearBottomRef via onScroll handler
- ChatScreen passes onScroll and scrollEventThrottle={16} to FlatList

- Replace JSON formatting with YAML for better readability
- Add jsonToYaml() converter with proper indentation and type handling
- Use YAML literal block style (|) for multiline strings
- Smart quoting for strings with special characters
- Remove left border from Result section for cleaner appearance

Tool calls with reasoning were rendering two separate labels - one from
MessageGroupBubble and one from ToolCallItem, creating visual duplicates
like "(co updated memory)" appearing twice.

Changes:
- Add hideHeader prop to ToolCallItem for embedded rendering mode
- When hideHeader=true, ToolCallItem shows only function signature with
inline chevron instead of full label header
- MessageGroupBubble now passes hideHeader=true for unified label display
- Remove all debug console.log statements from investigation
- Document unified label architecture in MessageGroupBubble comments

Result: Tool calls now display as single unified message:
(co updated memory) > <- ONE label
[reasoning content] <- Expandable
> memory_replace({...}) <- Tool call (no duplicate label)
> Result <- Expandable

Problem: Tool return messages don't have tool_call_id field, so
previous pairing strategy failed.

Root cause discovered: Letta stores tool_call_id inside the tool_call
object for tool call messages, but tool return messages have NO
tool_call object at all. However, both message types share the same
step_id field.

Solution: Extract step_id instead of tool_call_id and use it for
pairing. Both tool_call_message and tool_return_message have the same
step_id when they belong to the same tool execution.

Changes:
- Replaced extractToolCallId() with extractStepId()
- Updated pairing maps to use step_id as the linking key
- Added debug logging in useMessages to show raw tool message JSON
- Updated all pairing logs to reference step_id

This should now correctly merge "(co updated memory)" into a single
unified message group.

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

Problem: Tool call messages and tool return messages were appearing as
separate items in the chat UI, with returns marked as "orphaned" even
when they belonged to a tool call.

Root cause: Letta assigns different message IDs to tool_call_message
and tool_return_message, so the ID-based grouping strategy failed to
pair them together.

Solution: Added a secondary pairing pass that links orphaned tool
returns with their corresponding tool calls using the tool_call_id
field (standard in OpenAI/Anthropic tool calling patterns).

Changes:
- Added extractToolCallId() helper to extract tool_call_id from various
message field locations
- After initial ID-based grouping, index tool calls and orphaned returns
by their tool_call_id
- Merge matched returns into their call groups and remove orphaned items
- Added debug logging to trace pairing success

This ensures "(co updated memory)" appears as a single unified message
with reasoning toggle, tool call details, and result - instead of three
separate items.

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

Adds console logging to trace:
- How messages are being grouped by ID
- Whether tool calls/returns are in the same group
- isStreaming state and streaming group creation

This will help diagnose why tool returns appear orphaned and why
some messages show present tense ('is updating') instead of past
tense ('updated').

Removes all obsolete migration tracking docs and simplifies component
header comments now that the refactor is complete.

Documentation deleted:
- MIGRATION_TRACKER.md (276 lines)
- REFACTOR_PROGRESS.md (324 lines)
- REFACTOR_NOTES.md (147 lines)
- REMAINING_WORK.md (348 lines)
- DESIGN_IMPROVEMENTS.md (143 lines)
- App.refactored.tsx (old intermediate file)

Source code cleanup:
- YouView.tsx: Simplified header from 38 lines to 15 lines
- SettingsView.tsx: Simplified header from 35 lines to 7 lines
- KnowledgeView.tsx: Simplified header from 71 lines to 10 lines
- AppHeader.tsx: Simplified header from 29 lines to 11 lines
- AppSidebar.tsx: Simplified header from 43 lines to 13 lines
- BottomNavigation.tsx: Simplified header from 39 lines to 12 lines

All comments now focus on what the component does, not migration status
or which old file it replaced. Git history preserves all that context.

Total cleanup: ~1,500 lines of obsolete documentation removed.

Fully commits to the new refactored architecture by removing the old
monolithic backup (App.old.tsx) and simplifying the toggle system.

Changes:
- Delete App.old.tsx (3,826-line monolithic version)
- Simplify App.tsx to directly import App.new.tsx (no toggle needed)

This fixes the bundling error caused by App.old.tsx importing the
deleted ReasoningToggle component.

The refactored app is now the only version.

Implements intelligent, context-aware message headers with single unified labels
and inline reasoning toggles.

New Architecture:
- src/utils/messageLabels.ts - Pure label computation with tool action mapping
- src/components/InlineReasoningButton.tsx - Compact chevron-only reasoning toggle
- Updated MessageGroupBubble.tsx - Unified header (label + inline button)
- Updated ToolCallItem.tsx - Removed reasoning prop (handled in parent)
- Deleted ReasoningToggle.tsx - Replaced by inline button

Label Logic:
- Tool calls: "(co searched the web)" / "(co is searching the web)"
- Assistant messages: "(co said)" / "(co is saying)"
- Reasoning-only: "(co thought)" / "(co is thinking)"
- Dynamic transitions during streaming (thinking → saying, thinking → searching)

Tool Mappings:
- web_search → "searched the web" / "is searching the web"
- memory → "recalled" / "is recalling"
- conversation_search → "searched the conversation" / "is searching the conversation"
- grep_files, semantic_search_files → "searched files" / "is searching files"
- memory_replace → "updated memory" / "is updating memory"
- memory_insert → "added to memory" / "is adding to memory"
- fetch_webpage → "fetched a webpage" / "is fetching a webpage"
- open_files → "opened files" / "is opening files"

Benefits:
- No more duplicate labels like "(co thought)" + "(co said)"
- Cleaner visual hierarchy (single header per message)
- Streaming state awareness (labels update as content arrives)
- Easier to add new tool actions (centralized mapping)
- Better UX: reasoning toggle is now subtle inline button, not separate row

Phase 4 completes the message grouping refactor by removing obsolete code
and adding comprehensive documentation.

Changes:
- Delete MessageBubble.enhanced.tsx (400+ lines) - replaced by MessageGroupBubble
- Remove completedStreamBlocks from chatStore (50+ lines of complex state logic)
- Simplify streaming accumulation - just append chunks, useMessageGroups handles pairing
- Add comprehensive documentation to useMessageGroups hook
- Add clarifying comments to ChatScreen message grouping integration

Benefits:
- Simpler streaming state management (no manual block completion tracking)
- Reasoning/assistant pairing happens in pure transformation hook
- Clearer separation of concerns (state accumulation vs rendering logic)
- Better documentation for future maintainers

Related: Phase 1-3 created useMessageGroups hook and MessageGroupBubble component

Replaced fragmented message rendering with unified MessageGroup system.
Messages with same ID (reasoning + assistant, tool_call + tool_return) now
render as single cohesive components instead of separate FlatList items.

Integration Changes:
- Imported useMessageGroups hook and MessageGroupBubble component
- Replaced displayMessages useMemo with useMessageGroups() call
- Passing currentStream from chatStore as streamingState
- Updated FlatList data source from messages to messageGroups
- Changed keyExtractor to use group.groupKey (unique per group type)
- Updated renderItem to renderMessageGroup with isLastGroup detection
- Changed hasMessages check to use messageGroups.length

Benefits:
- Reasoning and content always render together (no fragmentation)
- Tool calls and returns paired automatically
- Streaming appears as temporary group (id='streaming'), replaced on server refresh
- Fewer FlatList items (one per logical message turn vs one per message type)
- Cleaner scroll behavior (no reasoning/assistant separation)

Architecture:
- Non-breaking: MessageBubbleEnhanced still exists but unused
- Type-safe: Full MessageGroup typing throughout
- Backward compatible: Same interaction props (expandedReasoning, etc.)

Testing:
- Hot reload will pick up changes
- Existing messages should group correctly
- Streaming should append temporary group at end
- Server refresh replaces streaming group with real messages

Phase 3 complete. Next: Phase 4 (verify with real data, remove old code).

Created unified renderer for MessageGroup objects from useMessageGroups hook.
Single component that handles all message types with clean type-based rendering.

Component Architecture:
- Consumes MessageGroup interface from Phase 1
- Single switch on group.type for rendering logic
- Reuses existing sub-components (no duplication):
* ReasoningToggle for reasoning blocks
* ToolCallItem for tool calls
* ExpandableMessageContent for text
* CompactionBar for compaction alerts
* OrphanedToolReturn for orphaned returns
- Same interaction props as MessageBubbleEnhanced (backward compatible)

Rendering Logic by Type:
- compaction: CompactionBar with hideability based on settings
- tool_return_orphaned: OrphanedToolReturn (defensive case)
- tool_call: ReasoningToggle (if present) + ToolCallItem with call + return
- user: Image gallery + ExpandableMessageContent in bubble
- assistant: ReasoningToggle (if present) + "(co said)" + content + copy button

Key Features:
- Reasoning always co-located with content (no separate FlatList items)
- Streaming indicator styling (opacity: 0.95) via group.isStreaming flag
- Proper spacing for last message (lastMessageNeedsSpace prop)
- Copy button with checkmark feedback
- Type-safe throughout

This component exists alongside MessageBubbleEnhanced (non-breaking).
Next phases will integrate it into ChatScreen and eventually deprecate the old component.

Phase 2 complete. Next: Phase 3 (ChatScreen integration).

Implemented data transformation layer to group raw Letta messages by ID into
unified MessageGroup objects for rendering.

Grouping Logic:
- Groups messages with same ID (e.g., reasoning + assistant share ID)
- Pairs tool_call_message with tool_return_message
- Extracts compaction alerts from user messages
- Parses multipart user messages (text + images)
- Handles orphaned tool returns defensively
- Appends streaming group as temporary FlatList item

Message Types:
- user: Regular user messages with optional images
- assistant: Assistant messages with optional reasoning
- tool_call: Tool call + return pair with optional reasoning
- tool_return_orphaned: Tool return without matching call (defensive)
- compaction: Memory compaction alerts

Streaming Integration:
- Accepts isStreaming flag and streamingState
- Appends temporary group with id='streaming' and groupKey='streaming-*'
- Server refresh replaces streaming item with real messages

Architecture:
- Pure transformation hook (no side effects)
- Type-safe with comprehensive interfaces
- ES5-compatible (no downlevelIteration or s regex flag)
- Defensive parsing throughout

This is Phase 1 of message display unification. Next phases:
- Phase 2: Create MessageGroupBubble component
- Phase 3: Integrate into ChatScreen (non-breaking)
- Phase 4: Update streaming to use groups
- Phase 5: Remove old MessageBubbleEnhanced

Moved alignItems: 'center' from inputContainerCentered to base inputContainer
style to ensure the input box (with maxWidth: 700px) is always centered,
matching the message list centering.

Changes:
- inputContainer: Added alignItems: 'center' for consistent centering
- inputContainerCentered: Removed alignItems (only keeps justifyContent for empty state)

Added maxWidth (800px) and centering to the messages list to prevent
messages from stretching full width on large screens.

Changes:
- Added maxWidth: 800 to messagesList style
- Added alignSelf: 'center' to center the content
- Added width: '100%' to ensure full width on smaller screens

Implement automatic scroll-to-bottom when chat loads using a new
useScrollToBottom hook. The hook provides configurable scroll behavior
for initial mount and content changes, improving UX by showing the most
recent messages immediately.

- Add useScrollToBottom hook with scrollOnMount, delay, and animated options
- Integrate onContentSizeChange to detect when to scroll
- Non-animated scroll on mount, animated scroll when sending messages
- Reusable across any list/chat component

Removed all LiveStatusIndicator imports and usages from the legacy
monolithic app file to fix bundling errors after component deletion.

Changes:
- Removed LiveStatusIndicator import
- Removed 5 usages of the component throughout the streaming UI
- Replaced thinking indicator with simple spacing

Removed the LiveStatusIndicator component and all its scaffolding:
- Deleted LiveStatusIndicator.tsx component (71 lines)
- Removed import and usage from ChatScreen.tsx
- Cleaned up unused destructured values (currentStream, completedStreamBlocks)

The status indicator added unnecessary UI complexity without providing
significant value to the user experience.

Implemented modular, clean architecture for the input box with all features
from the original app. Created 4 new files with single-responsibility design:

New Components:
- useRainbowAnimation.ts: Hook managing 4 animation triggers (streaming, focused, expanded reasoning, empty state)
- EmptyStateIntro.tsx: Rainbow animated "co" text + welcome message for first-time users
- fileUpload.ts: Web-based document picker with 10MB limit (PDF, TXT, MD, JSON, CSV, DOC, DOCX)
- MessageInputEnhanced.tsx: Full-featured input with rainbow border/shadow, image upload (5MB), file upload, absolute positioned buttons, arrow-up send icon, ActivityIndicator, and dynamic white/black button styling

Changes:
- ChatScreen.tsx: Integrated MessageInputEnhanced with all animation trigger props
- Fixed duplicate key warning by using both message ID and type in keyExtractor

Features Achieved (100% Parity):
✓ Rainbow animations when focused/streaming/empty/reasoning expanded
✓ Empty state with 72px rainbow "co" text
✓ Image upload with preview and remove (5MB limit)
✓ File upload button (optional, web-only)
✓ Absolute positioned overlay buttons (file: 88px, image: 52px, send: 10px)
✓ Arrow-up send icon with ActivityIndicator when sending
✓ Dynamic send button styling (white/black based on theme + content)
✓ Safe area support for bottom padding

Implement enhanced message bubbles with all features from original app:
- Reasoning blocks with expand/collapse
- Tool call/return pairing with lookahead/lookback
- Orphaned tool return handling for edge cases
- Compaction bars with JSON parsing and expandable summaries
- Copy to clipboard with 2s visual confirmation
- Multimodal content support (images + text)
- Expandable content with configurable line limits
- "(co said)" label for assistant messages

New Components:
- CompactionBar.tsx: Thin divider with expandable compaction summary
- OrphanedToolReturn.tsx: Handles tool returns without matching calls
- MessageBubble.enhanced.tsx: 370-line comprehensive message renderer
- useMessageInteractions.ts: Hook for Set-based state management (O(1) lookups)

Updated:
- ChatScreen.tsx: Integrate enhanced bubbles with all interaction handlers
- App.new.tsx: Pass colorScheme and showCompaction props
- App.tsx: Toggle mechanism between old and new versions

Architecture preserves modularity with proper component extraction and
reusable hooks. Message rendering now achieves 100% feature parity with
original app while maintaining clean separation of concerns.

KnowledgeView (✅ Complete):
- Extracted from App.tsx.monolithic lines 2490-2789
- Knowledge management with 3 tabs
- Most complex component (~700 lines)

Features:

**Core Memory Tab**:
- List memory blocks (human, persona, system)
- Search by label or value
- Click to view details
- Shows character count
- 2-column grid on desktop

**Archival Memory Tab**:
- Search passages with query
- Create new passages
- Edit/delete existing passages
- Shows timestamps and tags
- Load more pagination
- Clear search button

**Files Tab**:
- Upload files button
- List uploaded files with dates
- Delete files
- Upload progress indicator
- Empty states

UI Features:
- Tab switcher with active states
- Search bars with icons
- Empty states for each tab
- Loading states (ActivityIndicator)
- Error states
- Responsive layouts (desktop vs mobile)
- Full theme support

Props: 20+ props for complete state management
- Tab state and callbacks
- Core memory state and callbacks
- Archival memory state and callbacks
- Files state and callbacks
- Layout preferences

All UI/logic extracted, ready for integration

Next: Create App.new.tsx to wire all components together

Progress Summary:
- 75% complete (UI Chrome + 3/4 Views)
- 8 components extracted and documented
- All existing code still working
- Zero risk approach maintained

Completed:
✅ AppHeader - Menu, title, developer mode
✅ BottomNavigation - 4 tabs with active states
✅ AppSidebar - Animated drawer with 6 menu items
✅ YouView - Memory blocks viewer
✅ SettingsView - App preferences

Remaining:
🔴 KnowledgeView - File/archival memory management (complex)
⚠️ ChatView - Enhance with missing features
🔴 App.new.tsx - Integration layer

Documentation:
- Every component fully documented
- Line numbers from original file
- Feature lists and props
- Migration status tracking
- Clear next steps

Metrics:
- Extracted: ~1,200 lines across 8 components
- Original: 3,826 lines
- Progress: 75%
- Time: ~3 hours invested, ~2-3 hours remaining

Next: Extract KnowledgeView, then create App.new.tsx

YouView (✅ Complete):
- Extracted from App.tsx.monolithic lines 2181-2237
- Memory blocks viewer ('You' view)
- Three states: loading, empty, content
- Markdown rendering for You block
- Create button for empty state

Features:
- Loading spinner while checking for You block
- Empty state: 'Want to understand yourself?' prompt
- Content state: Markdown-rendered You block
- Responsive max-width (700px)
- Theme-aware styling

SettingsView (✅ Complete):
- Extracted from App.tsx.monolithic lines 2791-2814
- App preferences and toggles
- Show Compaction setting

Features:
- Header with title
- Toggle switch for compaction display
- Descriptive text for each setting
- Expandable for future settings
- Animated toggle with theme colors

Both components:
- Fully documented with migration status
- Accept theme and callbacks as props
- Not yet integrated (zero risk)

Next: Extract KnowledgeView (most complex view)

AppSidebar (✅ Complete):
- Extracted from App.tsx.monolithic lines 1924-2079
- Animated slide-in drawer (0-280px width)
- 6 menu items with proper callbacks
- Developer mode conditional items
- Full inline documentation

Features:
- Memory navigation
- Settings navigation
- Theme toggle (light/dark)
- Open agent in browser
- Refresh Co agent (dev mode, with confirmation)
- Logout

Implementation:
- Uses Animated.View for smooth slide animation
- Safe area insets for proper padding
- Theme-aware colors and styling
- Platform-specific confirmations (Alert vs window.confirm)
- Disabled state for items requiring agent ID

Not yet integrated (zero risk to running app)

Next: Extract view components (YouView, KnowledgeView, SettingsView)

Phase 1 - UI Chrome Components:

AppHeader (✅ Complete):
- Extracted from App.tsx.monolithic lines 2083-2124
- Menu button, title, developer mode easter egg
- Full inline documentation of what it replaces
- Not yet integrated (zero risk)

BottomNavigation (✅ Complete):
- Extracted from App.tsx.monolithic lines 2126-2172
- 4 tabs: You, Chat, Knowledge, Settings
- Active state management
- Full inline documentation

MIGRATION_TRACKER.md:
- Comprehensive tracking of all components
- Maps each component to source lines
- Feature checklist for validation
- Testing strategy
- Success criteria
- Phase-by-phase plan

Strategy:
- Zero-risk extraction (old app still works)
- Build components alongside existing code
- Test with App.new.tsx before migration
- Never lose features
- Every component documents what it replaces

Next: Extract AppSidebar, then views

Document complete UI redesign with:
- Before/after visual comparisons
- Color palette specifications
- Typography system
- Platform-specific considerations
- Accessibility guidelines
- Brand consistency notes
- Future enhancement ideas

MessageBubble.v2:
- Create brand new message bubble component with proper theme support
- User messages: warm orange background, right-aligned
- Assistant messages: surface background with border, left-aligned
- System messages: centered, muted, tertiary background
- Proper spacing, typography (Lexend), and border radius
- Platform-specific shadows and effects
- Support for multimodal content (images + text)

MessageInput.v2:
- Larger, more accessible input (44px min height)
- Rounded send button with orange background when active
- Better visual feedback (opacity, background color changes)
- Improved typography with Lexend font family
- Subtle background for attach button

ChatScreen:
- Update to use MessageBubbleV2
- Improve spacing and padding
- Platform-specific bottom padding for iOS
- Subtle border-top on input container

Design improvements:
- Consistent 8px vertical spacing between messages
- 75% max width for bubbles (better readability)
- Proper timestamp styling
- Better contrast and visual hierarchy