refactor: new design — sidecar services, moderator Gateway client, tool execute API

- Replace standalone no-reply-api Docker service with unified sidecar (services/main.mjs)
  that routes /no-reply/* and /moderator/* and starts/stops with openclaw-gateway
- Add moderator Discord Gateway client (services/moderator/index.mjs) for real-time
  MESSAGE_CREATE push instead of polling; notifies plugin via HTTP callback
- Add plugin HTTP routes (plugin/web/dirigent-api.ts) for moderator → plugin callbacks
  (wake-from-dormant, interrupt tail-match)
- Fix tool registration format: AgentTool requires execute: not handler:; factory form
  for tools needing ctx
- Rename no-reply-process.ts → sidecar-process.ts, startNoReplyApi → startSideCar
- Remove dead config fields from openclaw.plugin.json (humanList, agentList, listMode,
  channelPoliciesFile, endSymbols, waitIdentifier, multiMessage*, bypassUserIds, etc.)
- Rename noReplyPort → sideCarPort
- Remove docker-compose.yml, dev-up/down scripts, package-plugin.mjs, test-no-reply-api.mjs
- Update install.mjs: clean dist before build, copy services/, drop dead config writes
- Update README, Makefile, smoke script for new architecture

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -6,7 +6,7 @@
   "files": [
     "dist/",
     "plugin/",
-    "no-reply-api/",
+    "services/",
 
     "docs/",
     "scripts/install.mjs",
@@ -17,7 +17,7 @@
     "TASKLIST.md"
   ],
   "scripts": {
-    "prepare": "mkdir -p dist/dirigent && cp -r plugin/* dist/dirigent/",
+    "prepare": "mkdir -p dist/dirigent && cp -r plugin/* dist/dirigent/ && cp -r services dist/dirigent/services",
     "test": "node --test --experimental-strip-types test/**/*.test.ts",
     "postinstall": "node scripts/install.mjs --install",
     "uninstall": "node scripts/install.mjs --uninstall",