feat: add flow manager, config seeding, and expanded integration tests

Flow Management Service:
- FlowManagerService (AsyncProcessor) handling list/get/start/stop flows
  and list/get blueprints via kebab-case wire format
- Default blueprint with all service topic mappings
- Pushes flow config to config service on start/stop

Config Seeding:
- seed-config.ts script pushes prompt templates (extract-relationships,
  extract-definitions, document-prompt, kg-prompt) and default flow
  definition via gateway REST API

Integration Tests:
- Librarian CRUD: add-document, list-documents, get-content, delete
- Agent query: verifies routing through gateway to agent service
- Skip flags: SKIP_LIBRARIAN=1, SKIP_AGENT=1

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

ts/package.json

@@ -12,9 +12,11 @@
     "llm:claude": "tsx scripts/run-llm-claude.ts",
     "llm:openai": "tsx scripts/run-llm-openai.ts",
     "test:pipeline": "tsx scripts/test-pipeline.ts",
+    "seed": "tsx scripts/seed-config.ts",
     "agent": "tsx scripts/run-agent.ts",
     "librarian": "tsx scripts/run-librarian.ts",
-    "knowledge": "tsx scripts/run-knowledge.ts"
+    "knowledge": "tsx scripts/run-knowledge.ts",
+    "flow-manager": "tsx scripts/run-flow-manager.ts"
   },
   "devDependencies": {
     "tsx": "^4.21.0",