docs: update meta files for branded type call-site fixes

CHANGELOG.md

@@ -20,6 +20,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **Reconnect loop race in RemoteManager** — orphaned reconnect tasks continued running after `remove_machine()` or `disconnect()`. Added `cancelled: Arc<AtomicBool>` flag to `RemoteMachine`; set on removal/disconnect, checked each reconnect iteration. `connect()` resets flag for new connections (remote.rs)
 
 ### Changed
+- **Branded types for GroupId/AgentId (SOLID Phase 3b)** — Extended `types/ids.ts` with GroupId and AgentId branded types. Applied to ~40 sites: groups.ts interfaces (ProjectConfig.id, GroupConfig.id, GroupAgentConfig.id, GroupsFile.activeGroupId), btmsg-bridge.ts (5 interfaces, 15 function params), bttask-bridge.ts (Task/TaskComment, 6 params), groups-bridge.ts (AgentMessageRecord, ProjectAgentState, SessionMetric), 3 Svelte components (GroupAgentsPanel, TaskBoardTab, SettingsTab). agentToProject() uses `as unknown as ProjectId` cast for domain crossing. 12 tests in ids.test.ts. 332 vitest + 72 cargo total
 - **Branded types for SessionId/ProjectId (SOLID Phase 3)** — `types/ids.ts` with compile-time branded types (`string & { __brand }`) and factory functions. Applied to ~140 sites across 11 files: Map/Set keys in conflicts.svelte.ts (4 maps), health.svelte.ts (2 maps), session-persistence.ts (3 maps), function signatures across 6 files, boundary branding at sidecar entry in agent-dispatcher.ts, Svelte component call sites in AgentSession/ProjectBox/ProjectHeader. 293 vitest + 49 cargo total
 - **agent-dispatcher.ts split (SOLID Phase 2)** — 496→260 lines. Extracted 4 modules: `utils/worktree-detection.ts` (pure function), `utils/session-persistence.ts` (session maps + persist), `utils/auto-anchoring.ts` (compaction anchor), `utils/subagent-router.ts` (spawn + route). Dispatcher is now a thin coordinator
 - **session.rs split (SOLID Phase 2)** — 1008-line monolith split into 7 sub-modules under `session/` directory: mod.rs (struct + migrate), sessions.rs, layout.rs, settings.rs, ssh.rs, agents.rs, metrics.rs, anchors.rs. `pub(in crate::session)` conn visibility. 21 new cargo tests