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>

setup/index.ts

@@ -2,7 +2,7 @@
  * Setup CLI entry point.
  * Usage: npx tsx setup/index.ts --step <name> [args...]
  */
-import { logger } from '../src/logger.js';
+import { log } from '../src/log.js';
 import { emitStatus } from './status.js';
 
 const STEPS: Record<
@@ -47,7 +47,7 @@ async function main(): Promise<void> {
     await mod.run(stepArgs);
   } catch (err) {
     const message = err instanceof Error ? err.message : String(err);
-    logger.error({ err, step: stepName }, 'Setup step failed');
+    log.error('Setup step failed', { err, step: stepName });
     emitStatus(stepName.toUpperCase(), {
       STATUS: 'failed',
       ERROR: message,