semi implemented and features implemented save checkpoint

docs/features/unchecked/cli/system-database-migrations-cli.md

@@ -0,0 +1,29 @@
+# System Database Migrations CLI
+
+## Module
+Cli
+
+## Status
+IMPLEMENTED
+
+## Description
+PostgreSQL database migration management across modules (Authority, Scheduler, Concelier, Policy, Notify, Excititor) with category selection (startup/release/seed/data), dry-run mode, connection string overrides, and timeout configuration.
+
+## Implementation Details
+- **Command Group**: `src/Cli/StellaOps.Cli/Commands/SystemCommandBuilder.cs` -- `SystemCommandBuilder` for `stella system` commands
+- **Migration Service**: `src/Cli/StellaOps.Cli/Services/MigrationCommandService.cs` -- migration execution
+- **Migration Registry**: `src/Cli/StellaOps.Cli/Services/MigrationModuleRegistry.cs` -- module registry
+- **Migration Runner**: `src/Cli/StellaOps.Cli/Services/MigrationRunnerAdapter.cs` -- runner adapter
+- **Tests**: `src/Cli/__Tests/StellaOps.Cli.Tests/Commands/SystemCommandBuilderTests.cs`
+- **Commands**:
+  - `stella system migrations-run --module <name>` -- run migrations. Options: `--category startup|release|seed|data`, `--dry-run`, `--connection <connstr>`, `--timeout <duration>`
+  - `stella system migrations-status` -- show migration status per module
+  - `stella system migrations-verify` -- verify migration integrity
+
+## E2E Test Plan
+- [ ] Run `stella system migrations-status` and verify per-module migration status
+- [ ] Run `stella system migrations-run --module Authority` and verify Authority migrations
+- [ ] Run with `--category startup` and verify category filtering
+- [ ] Run with `--dry-run` and verify no actual changes
+- [ ] Run `stella system migrations-verify` and verify integrity check
+- [ ] Verify timeout with `--timeout 00:05:00`