feat: Enhance Authority Identity Provider Registry with Bootstrap Capability

- Added support for bootstrap providers in AuthorityIdentityProviderRegistry.
- Introduced a new property for bootstrap providers and updated AggregateCapabilities.
- Updated relevant methods to handle bootstrap capabilities during provider registration.

feat: Introduce Sealed Mode Status in OpenIddict Handlers

- Added SealedModeStatusProperty to AuthorityOpenIddictConstants.
- Enhanced ValidateClientCredentialsHandler, ValidatePasswordGrantHandler, and ValidateRefreshTokenGrantHandler to validate sealed mode evidence.
- Implemented logic to handle airgap seal confirmation requirements.

feat: Update Program Configuration for Sealed Mode

- Registered IAuthoritySealedModeEvidenceValidator in Program.cs.
- Added logging for bootstrap capabilities in identity provider plugins.
- Implemented checks for bootstrap support in API endpoints.

chore: Update Tasks and Documentation

- Marked AUTH-MTLS-11-002 as DONE in TASKS.md.
- Updated documentation to reflect changes in sealed mode and bootstrap capabilities.

fix: Improve CLI Command Handlers Output

- Enhanced output formatting for command responses and prompts in CommandHandlers.cs.

feat: Extend Advisory AI Models

- Added Response property to AdvisoryPipelineOutputModel for better output handling.

fix: Adjust Concelier Web Service Authentication

- Improved JWT token handling in Concelier Web Service to ensure proper token extraction and logging.

test: Enhance Web Service Endpoints Tests

- Added detailed logging for authentication failures in WebServiceEndpointsTests.
- Enabled PII logging for better debugging of authentication issues.

feat: Introduce Air-Gap Configuration Options

- Added AuthorityAirGapOptions and AuthoritySealedModeOptions to StellaOpsAuthorityOptions.
- Implemented validation logic for air-gap configurations to ensure proper setup.

docs/implplan/SPRINT_100_identity_signing.md

@@ -20,14 +20,16 @@ Focus: Identity & Signing focus on Authority (phase II).
 | # | Task ID & handle | State | Key dependency / next step | Owners |
 | --- | --- | --- | --- | --- |
 | 1 | AUTH-DPOP-11-001 | DONE (2025-11-08) | DPoP validation now runs for every `/token` grant, interactive tokens inherit `cnf.jkt`/sender claims, and docs/tests document the expanded coverage. (Deps: AUTH-AOC-19-002.) | Authority Core & Security Guild (src/Authority/StellaOps.Authority/TASKS.md) |
-| 2 | AUTH-MTLS-11-002 | DOING (2025-11-07) | Deliver mTLS-bound token issuance/validation (cert thumbprint storage, JWKS rotation hooks) required for high-assurance tenants and plugin mitigations. (Deps: AUTH-DPOP-11-001.) | Authority Core & Security Guild (src/Authority/StellaOps.Authority/TASKS.md) |
-| 3 | PLG4-6.CAPABILITIES | BLOCKED (2025-10-12) | Finalise capability metadata exposure, config validation, and developer guide updates; remaining action is Docs polish/diagram export. | BE-Auth Plugin, Docs Guild (src/Authority/StellaOps.Authority/StellaOps.Authority.Plugin.Standard/TASKS.md) |
+| 2 | AUTH-MTLS-11-002 | DONE (2025-11-08) | Refresh grants now enforce the original client certificate, tokens persist `x5t#S256`/hex metadata via shared helper, and docs/JWKS guidance call out the mTLS binding expectations. (Deps: AUTH-DPOP-11-001.) | Authority Core & Security Guild (src/Authority/StellaOps.Authority/TASKS.md) |
+| 3 | PLG4-6.CAPABILITIES | DONE (2025-11-08) | Finalise capability metadata exposure, config validation, and developer guide updates; remaining action is Docs polish/diagram export. | BE-Auth Plugin, Docs Guild (src/Authority/StellaOps.Authority/StellaOps.Authority.Plugin.Standard/TASKS.md) |
 | 4 | PLG6.DIAGRAM | DONE (2025-11-03) | Component + sequence diagrams rendered (Mermaid + SVG) and offline assets published under `docs/assets/authority`; dev guide now references final exports. | Docs Guild (src/Authority/StellaOps.Authority/StellaOps.Authority.Plugin.Standard/TASKS.md) |
 | 5 | PLG7.RFC | DONE (2025-11-03) | LDAP plugin RFC reviewed; guild sign-off captured and follow-up implementation issues filed per review notes. | BE-Auth Plugin, Security Guild (src/Authority/StellaOps.Authority/StellaOps.Authority.Plugin.Standard/TASKS.md) |
 | 6 | SEC2.PLG | BLOCKED (2025-10-21) | Emit audit events from password verification outcomes and persist via `IAuthorityLoginAttemptStore`. ⛔ Waiting on AUTH-DPOP-11-001 / AUTH-MTLS-11-002 to stabilise Authority auth surfaces (PLUGIN-DI-08-001 closed 2025-10-21; re-run once sender constraints land). | Security Guild, Storage Guild (src/Authority/StellaOps.Authority/StellaOps.Authority.Plugin.Standard/TASKS.md) |
 | 7 | SEC3.PLG | BLOCKED (2025-10-21) | Ensure lockout responses and rate-limit metadata flow through plugin logs/events (include retry-after). ⛔ Pending AUTH-DPOP-11-001 / AUTH-MTLS-11-002; PLUGIN-DI-08-001 already merged, so limiter telemetry just awaits final Authority surface. | Security Guild, BE-Auth Plugin (src/Authority/StellaOps.Authority/StellaOps.Authority.Plugin.Standard/TASKS.md) |
 | 8 | SEC5.PLG | BLOCKED (2025-10-21) | Address plugin-specific mitigations (bootstrap user handling, password policy docs) in threat model backlog. ⛔ Final documentation now hinges on AUTH-DPOP-11-001 / AUTH-MTLS-11-002 (PLUGIN-DI-08-001 landed 2025-10-21). | Security Guild (src/Authority/StellaOps.Authority/StellaOps.Authority.Plugin.Standard/TASKS.md) |
 
+- 2025-11-08: PLG4-6.CAPABILITIES marked DONE – bootstrap capability surfaced in code/docs, registry logs updated, and bootstrap APIs now gate on providers that advertise it (`dotnet test` across plugins + Authority core).
+
 ## 100.D) __Libraries
 Dependency: None specified; follow module prerequisites.
 Focus: Identity & Signing focus on __Libraries.