[codex] Add automation config and diagnostics controls

[ScriptedAlchemy]

Summary

• Adds conservative automation configuration defaults, project sidecar persistence, CLI commands, and dashboard controls for enabling/disabling standalone automation.
• Introduces automation backend contracts, managed skill draft primitives, and a JSONL automation run ledger for auditable self-improvement runs.
• Adds dashboard diagnostics for tool/hook/prompt rollups, surfaces automation capabilities to the dashboard wrapper, and records hook invocations for analytics.
• Keeps clippy-deny coverage clean by replacing fixable allows/ignores with typed defaults, explicit error handling, and focused tests.

Validation

• cargo test --test automation_run_ledger_test
• cargo test --test automation_backend_test --test managed_skills_test --test automation_config_test --test user_config_test
• cargo test --test dashboard_api_test automation_config_is_dashboard_controllable_and_persistent
• cargo test --test dashboard_analytics_api_test analytics_diagnostics_reports_tool_hook_and_prompt_rollups
• cargo test --features test-transport --test mcp_server_test test_server_stats
• cargo test --test cli_non_interactive_test automation_config_enable_writes_project_sidecar_noninteractively
• npm run test:dom -- test/curation-data.vitest.tsx test/curation-panel.vitest.tsx from dashboard/
• npm run build from dashboard/
• cargo clippy --all-targets --all-features -- -D warnings
• git diff --check
• scripts/check-conventional-commits.sh <merge-base>..HEAD

CI

GitHub Actions restarted for the conventional single-commit push; checks were queued/in progress when this description was updated.

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Latest commit: bb0d734

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