feat: Add domain architecture and extract core services from Prism Console

## Domain Architecture
- Complete domain-to-service mapping for 16 verified domains
- Subdomain architecture for blackroad.systems and blackroad.io
- GitHub organization mapping (BlackRoad-OS repos)
- Railway service-to-domain configuration
- DNS configuration templates for Cloudflare

## Extracted Services

### AIops Service (services/aiops/)
- Canary analysis for deployment validation
- Config drift detection
- Event correlation engine
- Auto-remediation with runbook mapping
- SLO budget management

### Analytics Service (services/analytics/)
- Rule-based anomaly detection with safe expression evaluation
- Cohort analysis with multi-metric aggregation
- Decision engine with credit budget constraints
- Narrative report generation

### Codex Governance (services/codex/)
- 82+ governance principles (entries)
- Codex Pantheon with 48+ agent archetypes
- Manifesto defining ethical framework

## Integration Points
- AIops → infra.blackroad.systems (blackroad-os-infra)
- Analytics → core.blackroad.systems (blackroad-os-core)
- Codex → operator.blackroad.systems (blackroad-os-operator)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

services/aiops/maintenance.py

@@ -0,0 +1,27 @@
+"""Maintenance window utilities."""
+from __future__ import annotations
+
+import json
+from datetime import datetime
+from pathlib import Path
+from typing import List, Optional
+
+from . import ARTIFACTS
+
+CALENDAR = ARTIFACTS / "maintenance.json"
+
+
+def next_window(
+    service: str,
+    action: str,
+    calendar: Optional[List[dict]] = None,
+) -> Optional[dict]:
+    if calendar is None:
+        if CALENDAR.exists():
+            with open(CALENDAR, "r", encoding="utf-8") as fh:
+                calendar = json.load(fh)
+        else:
+            calendar = []
+    windows = [w for w in calendar if w.get("service") == service and w.get("action") in {action, "*"}]
+    windows.sort(key=lambda w: w.get("start"))
+    return windows[0] if windows else None