ui: Add Thinking mode toggle with reasoning effort levels + improvements for Chat Form Add Action UI (#23434)

* feat: Add "Thinking" toggle and status icon + redesign Chat Form Actions Add panel

* test: Update test reference

* fix: Icon

* fix: E2E test command

* fix: wait for greeting h1 to be visible in e2e test

* fix: remove duplicate PDF option in attachment dropdown

* fix: use label-based group toggle to avoid stale references

* refactor: inline MCP server and tool toggles in mobile sheet

* fix: serve correct build directory in e2e playwright config

* feat: add reasoning effort levels selector in model dropdown

* feat: Reasoning effort

* refactor: Make server origin configurable via environment variable

* feat: Add chat template thinking detector utility

* feat: Add thinking support detection to models store

* refactor: Update model selector components with thinking detection and message-specific indicators

* feat: Update chat form components for model selection and thinking support

* feat: Improve Reasoning controls UI

* refactor: Apply suggestions from code review

Co-authored-by: Aleksander Grygier <aleksander.grygier@gmail.com>

* fix: Model tags

* refactor: Cleanup

* refactor: Remove unneeded components

* refactor: Cleanup

tools/ui/src/lib/constants/settings-keys.ts

@@ -29,6 +29,8 @@ export const SETTINGS_KEYS = {
 	ALWAYS_SHOW_SIDEBAR_ON_DESKTOP: 'alwaysShowSidebarOnDesktop',
 	FULL_HEIGHT_CODE_BLOCKS: 'fullHeightCodeBlocks',
 	SHOW_RAW_MODEL_NAMES: 'showRawModelNames',
+	SHOW_MODEL_QUANTIZATION: 'showModelQuantization',
+	SHOW_MODEL_TAGS: 'showModelTags',
 	SHOW_SYSTEM_MESSAGE: 'showSystemMessage',
 	// Sampling
 	TEMPERATURE: 'temperature',
@@ -64,6 +66,7 @@ export const SETTINGS_KEYS = {
 	// Developer
 	DISABLE_REASONING_PARSING: 'disableReasoningParsing',
 	EXCLUDE_REASONING_FROM_CONTEXT: 'excludeReasoningFromContext',
+	ENABLE_THINKING: 'enableThinking',
 	SHOW_RAW_OUTPUT_SWITCH: 'showRawOutputSwitch',
 	// PY_INTERPRETER_ENABLED: 'pyInterpreterEnabled',
 	CUSTOM_JSON: 'customJson',