v2: make v2 the main entry point, move v1 to src/v1/

- Move all v1 files (index, router, container-runner, db, ipc, types,
  logger, channels/registry, and all utilities) to src/v1/ as a
  fully self-contained archive with no shared dependencies
- Rename v2 files to remove -v2 suffix (index-v2.ts → index.ts, etc.)
- Update all imports across v2 source, tests, and setup files
- Migrate shared utilities (config, env, container-runtime, mount-security,
  timezone, group-folder) from pino logger to v2 log module
- Migrate setup/ files from logger to log with argument order swap
- Container agent-runner: move v1 entry to v1/, rename v2 to index.ts
- Update setup skill to offer all 13 v2 channels
- Install all Chat SDK adapter packages
- dist/index.js now runs v2; dist/v1/index.js runs v1

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/skills/add-matrix-v2/SKILL.md

@@ -9,7 +9,7 @@ This skill adds Matrix support to NanoClaw v2 using the Chat SDK bridge. Works w
 
 ## Phase 1: Pre-flight
 
-Check if `src/channels/matrix-v2.ts` exists and the import is uncommented in `src/channels/index.ts`. If both are in place, skip to Phase 3.
+Check if `src/channels/matrix.ts` exists and the import is uncommented in `src/channels/index.ts`. If both are in place, skip to Phase 3.
 
 ## Phase 2: Apply Code Changes
 
@@ -24,7 +24,7 @@ npm install @beeper/chat-adapter-matrix
 Uncomment the Matrix import in `src/channels/index.ts`:
 
 ```typescript
-import './matrix-v2.js';
+import './matrix.js';
 ```
 
 ### Build
@@ -71,7 +71,7 @@ launchctl kickstart -k gui/$(id -u)/com.nanoclaw  # macOS
 
 ## Removal
 
-1. Comment out `import './matrix-v2.js'` in `src/channels/index.ts`
+1. Comment out `import './matrix.js'` in `src/channels/index.ts`
 2. Remove `MATRIX_BASE_URL`, `MATRIX_ACCESS_TOKEN`, `MATRIX_USER_ID`, `MATRIX_BOT_USERNAME` from `.env`
 3. `npm uninstall @beeper/chat-adapter-matrix`
 4. Rebuild and restart