* docs: add tenant data isolation design spec
Complete architecture plan for multi-tenant data isolation across
all layers (PostgreSQL RLS, application-layer filtering, schema
migration, testing strategy, and phased rollout checklist).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* docs: add background job isolation policy to tenant isolation spec
Documents policy for all 5 existing background jobs:
- Knowledge Flywheel and PSA Retry flagged for account_id threading
- Chat Retention already follows correct pattern (model for others)
- Maintenance Schedule Firing needs account_id in queries + Session creation
- AI Conversation Expiry approved as cross-tenant with justification
Adds approved cross-tenant query registry and Phase 2 checklist items.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* docs: add tenant isolation Phase 0 implementation plan
8 tasks covering: CRITICAL copilot hotfix, tenant_filter() helper,
get_tenant_context dependency, analytics/category/AI session gap fixes,
full UUID endpoint audit, TargetList dead code audit, teams orphan
check, and CI grep check for missing tenant filters.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix: CRITICAL — scope copilot tree query to current account
A user who knew another account's tree UUID could start a copilot
conversation, causing the tree's full node structure, names, and
descriptions to be sent to the AI as part of the system prompt.
Fix: add account_id (or is_default / visibility='public') filter to
the tree SELECT in copilot_service.start_conversation(). Returns 404
for inaccessible trees. Test added in test_tenant_isolation_p0.py.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
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