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docs/db/tasks/PHASE_4_POLICY.md

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+# Phase 4: Policy Module Conversion
+
+**Sprint:** 5
+**Duration:** 1 sprint
+**Status:** TODO
+**Dependencies:** Phase 0 (Foundations)
+
+---
+
+## Objectives
+
+1. Create `StellaOps.Policy.Storage.Postgres` project
+2. Implement Policy schema in PostgreSQL
+3. Handle policy pack versioning correctly
+4. Implement risk profiles with version history
+
+---
+
+## Deliverables
+
+| Deliverable | Acceptance Criteria |
+|-------------|---------------------|
+| Policy schema | All tables created with indexes |
+| Repository implementations | All 4+ interfaces implemented |
+| Version management | Pack versioning working correctly |
+| Integration tests | 100% coverage of CRUD operations |
+
+---
+
+## Schema Reference
+
+See [SPECIFICATION.md](../SPECIFICATION.md) Section 5.6 for complete Policy schema.
+
+**Tables:**
+- `policy.packs`
+- `policy.pack_versions`
+- `policy.rules`
+- `policy.risk_profiles`
+- `policy.evaluation_runs`
+- `policy.explanations`
+- `policy.exceptions`
+- `policy.audit`
+
+---
+
+## Task Breakdown
+
+### T4.1: Create Policy.Storage.Postgres Project
+
+**Status:** TODO
+**Estimate:** 0.5 days
+
+---
+
+### T4.2: Implement Schema Migrations
+
+**Status:** TODO
+**Estimate:** 1 day
+
+---
+
+### T4.3: Implement Pack Repository
+
+**Status:** TODO
+**Estimate:** 1 day
+
+**Subtasks:**
+- [ ] Implement CRUD for packs
+- [ ] Implement version management
+- [ ] Handle active version promotion
+- [ ] Write integration tests
+
+---
+
+### T4.4: Implement Risk Profile Repository
+
+**Status:** TODO
+**Estimate:** 1 day
+
+**Subtasks:**
+- [ ] Implement CRUD operations
+- [ ] Handle version history
+- [ ] Implement GetVersionAsync
+- [ ] Implement ListVersionsAsync
+- [ ] Write integration tests
+
+---
+
+### T4.5: Implement Remaining Repositories
+
+**Status:** TODO
+**Estimate:** 1.5 days
+
+**Subtasks:**
+- [ ] Implement Evaluation Run repository
+- [ ] Implement Explanation repository
+- [ ] Implement Exception repository
+- [ ] Implement Audit repository
+- [ ] Write integration tests
+
+---
+
+### T4.6: Add Configuration Switch
+
+**Status:** TODO
+**Estimate:** 0.5 days
+
+---
+
+### T4.7: Run Verification Tests
+
+**Status:** TODO
+**Estimate:** 1 day
+
+---
+
+### T4.8: Migrate Active Policy Packs
+
+**Status:** TODO
+**Estimate:** 0.5 days
+
+**Subtasks:**
+- [ ] Export active packs from MongoDB
+- [ ] Import to PostgreSQL
+- [ ] Verify version numbers
+- [ ] Verify active version settings
+
+---
+
+### T4.9: Switch to PostgreSQL-Only
+
+**Status:** TODO
+**Estimate:** 0.5 days
+
+---
+
+## Exit Criteria
+
+- [ ] All repository interfaces implemented
+- [ ] Pack versioning working correctly
+- [ ] All integration tests pass
+- [ ] Policy running on PostgreSQL in production
+
+---
+
+*Phase Version: 1.0.0*
+*Last Updated: 2025-11-28*