feat(city-service): add Governance, Audit, Incidents API endpoints

- Added repo_governance.py with database operations
- Added routes_governance.py (/api/v1/governance/*)
- Added routes_audit.py (/api/v1/audit/*)
- Added routes_incidents.py (/api/v1/incidents/*)
- Updated main.py to include new routers

docs/tasks/TASK_PHASE_GOVERNANCE_BACKEND_API.md

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+# TASK_PHASE_GOVERNANCE_BACKEND_API
+
+**Status:** 🔄 In Progress  
+**Created:** 2024-11-30  
+**Goal:** Додати Governance, Audit, Incidents API endpoints до `city-service` (FastAPI)
+
+---
+
+## 📋 Контекст
+
+Frontend UI для Governance Engine вже задеплоєний на `daarion.space`, але API endpoints повертають 404 бо `city-service` не має цих маршрутів.
+
+**Проблема:**
+```bash
+curl http://localhost:7001/api/v1/governance/agents/city
+# → {"detail":"Not Found"}
+```
+
+**Рішення:** Додати governance endpoints безпосередньо в `city-service` (FastAPI), використовуючи вже існуючі таблиці БД.
+
+---
+
+## 📁 Нові файли в city-service
+
+```
+services/city-service/
+├── repo_governance.py      # Repository для governance/audit/incidents
+├── routes_governance.py    # FastAPI router для /api/v1/governance/*
+├── routes_audit.py         # FastAPI router для /api/v1/audit/*
+├── routes_incidents.py     # FastAPI router для /api/v1/incidents/*
+└── main.py                 # Оновити для підключення нових роутів
+```
+
+---
+
+## 🎯 API Endpoints
+
+### Governance (`/api/v1/governance`)
+
+| Method | Endpoint | Description |
+|--------|----------|-------------|
+| GET | `/agents/city` | City Governance Agents (DAARWIZZ, DARIO, DARIA) |
+| GET | `/agents/district/{id}` | District Lead Agent + core-team |
+| GET | `/agents/microdao/{id}` | MicroDAO Orchestrator + workers |
+| GET | `/agents/by-level/{level}` | Agents filtered by gov_level |
+| GET | `/agent/{id}/roles` | Agent roles and permissions |
+| POST | `/agent/promote` | Promote agent to higher level |
+| POST | `/agent/demote` | Demote agent |
+| POST | `/agent/revoke` | Revoke agent (soft/hard) |
+| POST | `/agent/suspend` | Suspend agent temporarily |
+| POST | `/agent/reinstate` | Reinstate suspended agent |
+| POST | `/check` | Check permission for action |
+
+### Audit (`/api/v1/audit`)
+
+| Method | Endpoint | Description |
+|--------|----------|-------------|
+| GET | `/events` | List audit events with filters |
+| GET | `/events/{id}` | Single event details |
+| GET | `/actor/{actorId}` | Events by actor |
+| GET | `/target/{targetId}` | Events by target |
+| GET | `/stats` | Audit statistics |
+
+### Incidents (`/api/v1/incidents`)
+
+| Method | Endpoint | Description |
+|--------|----------|-------------|
+| GET | `/` | List incidents with filters |
+| GET | `/{id}` | Single incident details |
+| POST | `/` | Create incident |
+| POST | `/{id}/assign` | Assign incident |
+| POST | `/{id}/escalate` | Escalate incident |
+| POST | `/{id}/resolve` | Resolve incident |
+| POST | `/{id}/close` | Close incident |
+| POST | `/{id}/comment` | Add comment |
+| GET | `/{id}/history` | Incident history |
+
+---
+
+## 🗄️ Database Tables (вже існують)
+
+- `agents` (з полями `gov_level`, `status`, `revoked_at`, `revoked_by`)
+- `agent_assignments`
+- `event_outbox` (actor_id, target_id, scope)
+- `incidents`
+- `incident_history`
+- `permissions`
+- `agent_revocations`
+- `dais_keys`
+
+---
+
+## ✅ Checklist
+
+- [ ] Create `repo_governance.py`
+- [ ] Create `routes_governance.py`
+- [ ] Create `routes_audit.py`
+- [ ] Create `routes_incidents.py`
+- [ ] Update `main.py` to include new routers
+- [ ] Test locally
+- [ ] Deploy to NODE1
+- [ ] Verify on daarion.space
+
+---
+
+## 🚀 Deployment
+
+```bash
+# On NODE1
+cd /opt/microdao-daarion
+git pull
+docker build -t daarion-city-service services/city-service/
+docker stop daarion-city-service && docker rm daarion-city-service
+docker run -d --name daarion-city-service --network dagi-network ...
+```
+