feat: add reasoning effort support for Codex models

- Add ReasoningEffortSelector component for UI selection
- Integrate reasoning effort in feature creation/editing dialogs
- Add reasoning effort support to phase model selector
- Update agent service and board actions to handle reasoning effort
- Add reasoning effort fields to feature and settings types
- Update model selector and agent info panel with reasoning effort display
- Enhance agent context parser for reasoning effort processing

Reasoning effort allows fine-tuned control over Codex model reasoning
capabilities, providing options from 'none' to 'xhigh' for different
task complexity requirements.

apps/ui/src/components/views/board-view/hooks/use-board-actions.ts

@@ -8,6 +8,7 @@ import {
   PlanningMode,
   useAppStore,
 } from '@/store/app-store';
+import type { ReasoningEffort } from '@automaker/types';
 import { FeatureImagePath as DescriptionImagePath } from '@/components/ui/description-image-dropzone';
 import { getElectronAPI } from '@/lib/electron';
 import { toast } from 'sonner';
@@ -222,6 +223,7 @@ export function useBoardActions({
         skipTests: boolean;
         model: ModelAlias;
         thinkingLevel: ThinkingLevel;
+        reasoningEffort: ReasoningEffort;
         imagePaths: DescriptionImagePath[];
         branchName: string;
         priority: number;