chore: update API routers, validation, and docs for module system

- app/api/v1/admin/__init__.py: Updated router imports
- app/api/v1/vendor/__init__.py: Updated router imports
- app/exceptions/code_quality.py: Added module exception imports
- scripts/validate_architecture.py: Added module validation rules
- .architecture-rules/_main.yaml: Include module.yaml rules
- docs/proposals/module-migration-plan.md: Updated migration status

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/proposals/module-migration-plan.md

@@ -2,7 +2,7 @@
 
 **Status:** In Progress
 **Started:** 2026-01-25
-**Last Updated:** 2026-01-27
+**Last Updated:** 2026-01-28
 **Target:** v1.0.0
 
 This is the unified migration plan for transforming Wizamart into a fully modular architecture.
@@ -31,13 +31,13 @@ Transform the platform from a monolithic structure to self-contained modules whe
 | `payments` | Optional | 🟡 Partial | ✅ | ✅ | - | Done |
 | `billing` | Optional | ✅ **Complete** | ✅ | ✅ | ✅ | Done |
 | `marketplace` | Optional | ✅ **Complete** | ✅ | ✅ | ✅ | Done |
-| `orders` | Optional | 🔴 Shell | ❌ | ❌ | - | Full |
-| `inventory` | Optional | 🔴 Shell | ❌ | ❌ | - | Full |
-| `customers` | Core | 🔴 Shell | ❌ | ❌ | - | Full |
-| `analytics` | Optional | 🔴 Shell | ❌ | ❌ | - | Full |
-| `messaging` | Optional | 🔴 Shell | ❌ | ❌ | - | Full |
-| `monitoring` | Internal | 🔴 Shell | ❌ | ❌ | ❌ | Full |
-| `dev-tools` | Internal | 🔴 Shell | ❌ | ❌ | ❌ | Full |
+| `orders` | Optional | ✅ **Complete** | ✅ | ✅ | - | Done |
+| `inventory` | Optional | ✅ **Complete** | ✅ | ✅ | - | Done |
+| `customers` | Core | ✅ **Complete** | ✅ | ✅ | - | Done |
+| `analytics` | Optional | ✅ **Complete** | ✅ | - | - | Done |
+| `messaging` | Optional | ✅ **Complete** | ✅ | ✅ | - | Done |
+| `monitoring` | Internal | ✅ **Complete** | ✅ | ✅ | - | Done |
+| `dev-tools` | Internal | ✅ **Complete** | ✅ | ✅ | ✅ | Done |
 | `tenancy` | Core | 🔴 Shell | ❌ | ❌ | - | Full |
 | `core` | Core | 🔴 Shell | ❌ | ❌ | - | Minimal |
 
@@ -140,6 +140,69 @@ app/tasks/celery_tasks/          # → Move to respective modules
 - Updated legacy task files to re-export from new location
 - Removed marketplace/letzshop/export from LEGACY_TASK_MODULES
 
+### ✅ Phase 7: Dev-Tools Module Migration
+- Created `app/modules/dev_tools/models/` with:
+  - `architecture_scan.py` - ArchitectureScan, ArchitectureViolation, ArchitectureRule, etc.
+  - `test_run.py` - TestRun, TestResult, TestCollection
+- Created `app/modules/dev_tools/services/` re-exporting code_quality_service, test_runner_service
+- Created `app/modules/dev_tools/schemas/` (placeholder for future schemas)
+- Created `app/modules/dev_tools/tasks/` with:
+  - `code_quality.py` - execute_code_quality_scan
+  - `test_runner.py` - execute_test_run
+- Created `app/modules/dev_tools/exceptions.py` with test runner exceptions
+- Created `app/modules/dev_tools/routes/api/` with admin router
+- Updated `definition.py` with self-contained configuration
+- Updated legacy model files to re-export from module location
+- Updated legacy task files to re-export from module location
+- Used lazy imports in `__init__.py` to avoid circular import issues
+
+### ✅ Phase 8: Monitoring Module Migration
+- Created `app/modules/monitoring/models/` re-exporting CapacitySnapshot, AdminNotification
+- Created `app/modules/monitoring/services/` re-exporting BackgroundTasksService
+- Created `app/modules/monitoring/schemas/` (placeholder)
+- Created `app/modules/monitoring/exceptions.py` with monitoring-specific exceptions
+- Updated `definition.py` with self-contained configuration
+- Used lazy imports in `__init__.py` to avoid circular import issues
+
+### ✅ Phase 9: Customers Module Migration
+- Created `app/modules/customers/models/` re-exporting Customer, CustomerAddress, PasswordResetToken
+- Created `app/modules/customers/services/` re-exporting customer services
+- Created `app/modules/customers/schemas/` re-exporting customer schemas
+- Created `app/modules/customers/exceptions.py` re-exporting customer exceptions
+- Updated `definition.py` with self-contained configuration
+- Used lazy imports in `__init__.py` to avoid circular import issues
+
+### ✅ Phase 10: Orders Module Migration
+- Created `app/modules/orders/models/` re-exporting Order, OrderItem, Invoice, etc.
+- Created `app/modules/orders/services/` re-exporting order and invoice services
+- Created `app/modules/orders/schemas/` re-exporting order and invoice schemas
+- Created `app/modules/orders/exceptions.py` re-exporting order exceptions
+- Updated `definition.py` with self-contained configuration
+- Used lazy imports in `__init__.py` to avoid circular import issues
+
+### ✅ Phase 11: Inventory Module Migration
+- Created `app/modules/inventory/models/` re-exporting Inventory, InventoryTransaction
+- Created `app/modules/inventory/services/` re-exporting inventory services
+- Created `app/modules/inventory/schemas/` re-exporting inventory schemas
+- Created `app/modules/inventory/exceptions.py` re-exporting inventory exceptions
+- Updated `definition.py` with self-contained configuration
+- Used lazy imports in `__init__.py` to avoid circular import issues
+
+### ✅ Phase 12: Analytics & Messaging Module Migration
+- **Analytics Module:**
+  - Created `app/modules/analytics/models/` (empty - uses data from other modules)
+  - Created `app/modules/analytics/services/` re-exporting StatsService, UsageService
+  - Created `app/modules/analytics/schemas/` re-exporting stats schemas
+  - Created `app/modules/analytics/exceptions.py` with reporting exceptions
+  - Updated `definition.py` with self-contained configuration
+
+- **Messaging Module:**
+  - Created `app/modules/messaging/models/` re-exporting Conversation, Message, etc.
+  - Created `app/modules/messaging/services/` re-exporting messaging services
+  - Created `app/modules/messaging/schemas/` re-exporting messaging schemas
+  - Created `app/modules/messaging/exceptions.py` re-exporting message exceptions
+  - Updated `definition.py` with self-contained configuration
+
 ---
 
 ## Module Migration Phases