[CLAUDE] Scaffold: khoi tao SOLUTION_ERP Phase 0

- .NET 10 Clean Architecture: Domain/Application/Infrastructure/Api (4 project)
- 2 React + Vite + TS app: fe-admin (:8082), fe-user (:8080) voi proxy /api
- Node engines >=20, .nvmrc = 20 cho CI (bai hoc NamGroup)
- SQL Server 2022 qua docker-compose (dev)
- Parse 8 FORM -> docs/forms-spec.md (catalog + ma HD format RG-001)
- Parse QUY_TRINH -> docs/workflow-contract.md (9 phase state machine + role matrix)
- docs: CLAUDE.md, STATUS.md, PROJECT-MAP.md, migration-todos.md (roadmap 5 phase)
- .claude/skills: 3 placeholder (contract-workflow, form-engine, permission-matrix)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/Backend/SolutionErp.Api/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}