Refactor view modules for improved readability and consistency

- Updated markdown rendering logic to use more concise methods for obtaining vector lengths.
- Changed review status display to use the correct flag from settings.
- Cleaned up sidebar rendering code for better formatting and readability.
- Enhanced status bar rendering with improved string formatting and consistent style application.
- Refined workflow panel rendering, ensuring consistent style usage and improved readability.
- Added architecture overview and detailed documentation for backend, data, dependencies, and frontend structures.

docs/CODEMAPS/data.md

@@ -0,0 +1,89 @@
+# Data Architecture
+
+## State Model
+
+The single source of truth is `AppStateRest` (`src/app/state/rest.rs`):
+
+```
+AppStateRest
+├── session: SessionRuntime (hive_mind state, convergence flag)
+├── runtime: RuntimeState (mode, provider status)
+├── chat: ChatState (messages, scroll)
+├── input: InputState (text, cursor, autocomplete)
+├── settings: Settings (provider, model, temperature, concise_output)
+├── config: AppConfig (endpoints, credentials)
+├── scroll: ScrollState (per-panel offset)
+├── diff: DiffState (edit review)
+├── tools: Vec with outputs
+├── statusline, sidebar, etc.
+└── toasts: pending notifications
+```
+
+**Mutation rules** (per CLAUDE.md):
+- Mutated in-place from exactly two locations: `actions/mod.rs` (apply_action) and `controller/input.rs` (key handlers)
+- Read-only from every other module
+- No generic update function — direct field mutation only
+
+## Persistence
+
+### SQLite Message Log (`src/model/msglog/`)
+
+| File | Purpose |
+|------|---------|
+| `schema.rs` | Table definitions (messages, sessions) |
+| `mod.rs` | CRUD operations |
+| `query.rs` | Query helpers (search, filter) |
+| `blobs.rs` | Large message blob storage |
+| `summary.rs` | Conversation summary cache |
+
+Schema uses `rusqlite` (bundled) with per-session isolation — each session gets its own database.
+
+### Memory System (`src/model/memory.rs`)
+
+File-based memory stored under `~/.claude/projects/<project>/memory/`:
+
+- Each memory is one markdown file with frontmatter (name, description, type)
+- Types: `user`, `feedback`, `project`, `reference`
+- Memory index in MEMORY.md
+- Export/import for lesson sharing
+- PID-file session lock prevents concurrent access
+
+### Settings & Config (`src/model/`)
+
+| File | Purpose |
+|------|---------|
+| `settings.rs` | Serialized user preferences (provider, model, theme) |
+| `app_config.rs` | Provider endpoints, API key resolution from env |
+| `session.rs` | Current session metadata |
+| `conversation.rs` | In-memory conversation state |
+| `editlog.rs` | Append-only JSONL edit audit trail |
+
+### Edit Log
+
+`src/model/editlog.rs` records every file mutation:
+
+```json
+{"ts": 123, "tool": "edit", "path": "src/main.rs",
+ "reason": "fix bug", "content_sha256": "abc123",
+ "bytes_delta": 15, "origin": "chat", "session_id": "sess-1"}
+```
+
+Max 5000 entries held in memory before pruning oldest.
+
+## Context Management (`src/app/runtime/context/`)
+
+| Module | Purpose |
+|--------|---------|
+| `tokens.rs` | Token counting via `tiktoken-rs` |
+| `window.rs` | Token window resolution (fit within model context) |
+| `dedup.rs` | Deduplication of repeated tool outputs |
+| `squash.rs` | Compression of large JSON tool results |
+| `shaping.rs` | Message dropping when context exceeds limits |
+
+## IPC Data Flow
+
+```
+Daemon State ──diff──▶ serialize ──frame──▶ socket ──▶ Client
+                                                          │
+Client State ◀── apply_diff ◀── deserialize ◀──── socket ─┘
+```