feat: wire up all Phase 2-6 features into daemon and config

Integrate all new features into the shared infrastructure:
- Config schema: add memory, discord, slack, process, web_search schemas
- Daemon wiring: memory store init, tool registration, channel adapters
- Orchestrator: memory injection into system prompt, extraction on compaction
- Agent: add setSystemPrompt() for dynamic prompt updates
- Channel/tool index: export new adapters and tool factories
- Add @slack/bolt, discord.js, turndown, linkedom, @mozilla/readability deps
- Update state.json with Phase 3b completion (494 tests passing)

package.json

@@ -31,6 +31,7 @@
     "@types/marked-terminal": "^6.1.1",
     "@types/node": "^22.0.0",
     "@types/react": "^19.0.0",
+    "@types/turndown": "^5.0.0",
     "@types/ws": "^8.18.1",
     "eslint": "^9.0.0",
     "tsx": "^4.0.0",
@@ -40,18 +41,23 @@
   "dependencies": {
     "@anthropic-ai/sdk": "^0.39.0",
     "@modelcontextprotocol/sdk": "^1.26.0",
+    "@mozilla/readability": "^0.5.0",
+    "@slack/bolt": "^4.6.0",
     "better-sqlite3": "^11.0.0",
     "cli-highlight": "^2.1.11",
     "commander": "^14.0.3",
     "croner": "^10.0.1",
+    "discord.js": "^14.25.1",
     "grammy": "^1.35.0",
     "ink": "^6.0.0",
     "ink-text-input": "^6.0.0",
+    "linkedom": "^0.18.0",
     "marked": "^17.0.1",
     "marked-terminal": "^7.3.0",
     "ollama": "^0.5.0",
     "openai": "^4.0.0",
     "react": "^19.0.0",
+    "turndown": "^7.2.0",
     "ws": "^8.19.0",
     "yaml": "^2.7.0",
     "zod": "^3.24.0"