feat: release 2.1.0 with optional Flash final AI review

Default Flash final review to off and persist the setting across the UI,
MCP, SDK and queued tasks. Keep execution separate from test verdicts.

Bundle UI fonts and licenses to remove Google Fonts from startup builds.
Align backend/frontend versions and document installation and upgrades.

apps/admin_console/services/model_settings_service.py

@@ -177,6 +177,9 @@ class CapabilitySettings(BaseModel):
     recording_enabled: bool = False
     recording: dict = Field(default_factory=dict)
     outputter_enabled: bool = True
+    flash_final_check_enabled: bool = Field(
+        default_factory=lambda: load_agent_config().flash.final_check_enabled
+    )
     step_summarizer_enabled: bool = True
     screenshot_limit_enabled: bool = True
     screenshot_max_long_edge: int = 2048
@@ -207,6 +210,7 @@ def get_capability_settings() -> CapabilitySettings:
         recording_enabled=settings.ARTEMIS_RECORDING_ENABLED,
         recording=load_agent_config().recording.model_dump(),
         outputter_enabled=settings.ARTEMIS_OUTPUTTER_ENABLED,
+        flash_final_check_enabled=load_agent_config().flash.final_check_enabled,
         step_summarizer_enabled=settings.ARTEMIS_STEP_SUMMARIZER_ENABLED,
         screenshot_limit_enabled=screenshot.enabled,
         screenshot_max_long_edge=screenshot.max_long_edge,
@@ -227,6 +231,7 @@ def save_capability_settings(update: CapabilitySettings) -> CapabilitySettings:
         "ARTEMIS_VIDEO_ENABLED": update.video_enabled,
         "ARTEMIS_RECORDING_ENABLED": update.recording_enabled,
         "ARTEMIS_OUTPUTTER_ENABLED": update.outputter_enabled,
+        "ARTEMIS_FLASH_FINAL_CHECK_ENABLED": update.flash_final_check_enabled,
         "ARTEMIS_STEP_SUMMARIZER_ENABLED": update.step_summarizer_enabled,
         "ARTEMIS_SCREENSHOT_LIMIT_ENABLED": update.screenshot_limit_enabled,
         "ARTEMIS_TASK_TIMEOUT_SECONDS": update.task_timeout_seconds,