feat(odoo): add activeblue_ai Odoo 18 module with OWL2 frontend

Models:
- ab.ai.bot: service URL, webhook secret, privacy mode, ping/dispatch
- ab.ai.directive: full directive lifecycle log with status tracking
- ab.ai.log: activity log with level/agent/record linkage
- ab.ai.agent.registry: agent list synced from agent service

Controllers:
- webhook.py: /ai/webhook/callback handles directive_completed, escalation, sweep_findings
- health_proxy.py: /ai/health proxies agent service detailed health
- approval.py: /ai/chat dispatch, /ai/approval/pending, /ai/approval/respond

Security:
- group_ai_user (chat) + group_ai_manager (configure, approve, logs)
- ir.model.access.csv for all 4 models

Views: list/form for bot, directives, logs, registry; main menu with AI brain icon

OWL2 frontend:
- systray_button.js: brain icon in top bar, status dot, pending approval badge
- ai_panel.js: slide-in chat panel, approval workflow, 30s poll for pending items
- CSS: slide-in animation, message bubbles, loading dots, approval section

Data: 4 cron jobs (ping, registry sync, directive/log cleanup)

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

addons/activeblue_ai/__manifest__.py

@@ -0,0 +1,37 @@
+{
+    'name': 'ActiveBlue AI',
+    'version': '18.0.0.1.0',
+    'summary': 'Multi-agent AI assistant for Odoo 18',
+    'description': """
+ActiveBlue AI integrates a multi-agent AI system into Odoo 18.
+Features a Master AI with 8 specialist agents for finance, accounting,
+CRM, sales, project management, eLearning, expenses, and HR.
+    """,
+    'author': 'ActiveBlue',
+    'website': 'https://activeblue.net',
+    'category': 'Productivity',
+    'license': 'LGPL-3',
+    'depends': ['base', 'mail', 'web'],
+    'data': [
+        'security/ir.model.access.csv',
+        'security/res_groups.xml',
+        'data/ir_cron.xml',
+        'views/ab_ai_bot_views.xml',
+        'views/ab_ai_directive_views.xml',
+        'views/ab_ai_log_views.xml',
+        'views/ab_ai_registry_views.xml',
+        'views/menus.xml',
+    ],
+    'assets': {
+        'web.assets_backend': [
+            'activeblue_ai/static/src/css/activeblue_ai.css',
+            'activeblue_ai/static/src/xml/systray.xml',
+            'activeblue_ai/static/src/xml/ai_panel.xml',
+            'activeblue_ai/static/src/js/components/ai_panel.js',
+            'activeblue_ai/static/src/js/components/systray_button.js',
+        ],
+    },
+    'installable': True,
+    'application': True,
+    'auto_install': False,
+}