chore: Fix all lint errors and remove unused code

- Fix 75 ESLint errors by updating eslint.config.mjs:
  - Add missing browser globals (MouseEvent, AbortController, Response, etc.)
  - Add Vite define global (__APP_VERSION__)
  - Configure @ts-nocheck to require descriptions
  - Add no-unused-vars rule for .mjs scripts

- Fix runtime bug in agent-output-modal.tsx (setOutput -> setStreamedContent)

- Remove ~120 unused variable warnings across 97 files:
  - Remove unused imports (React hooks, lucide icons, types)
  - Remove unused constants and variables
  - Remove unused function definitions
  - Prefix intentionally unused parameters with underscore

- Add descriptions to all @ts-nocheck comments (25 files)

- Clean up misc issues:
  - Remove invalid deprecation plugin comments
  - Fix eslint-disable comment placement
  - Add missing RefreshCw import in code-view.tsx

Reduces lint warnings from ~300 to 67 (all remaining are no-explicit-any)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/ui/src/components/views/board-view/dialogs/add-feature-dialog.tsx

@@ -1,6 +1,5 @@
-// @ts-nocheck
+// @ts-nocheck - feature data building with conditional fields and model type inference
 import { useState, useEffect, useRef } from 'react';
-import { createLogger } from '@automaker/utils/logger';
 import {
   Dialog,
   DialogContent,
@@ -27,18 +26,10 @@ import { useNavigate } from '@tanstack/react-router';
 import { toast } from 'sonner';
 import { cn } from '@/lib/utils';
 import { modelSupportsThinking } from '@/lib/utils';
-import {
-  useAppStore,
-  ModelAlias,
-  ThinkingLevel,
-  FeatureImage,
-  PlanningMode,
-  Feature,
-} from '@/store/app-store';
+import { useAppStore, ThinkingLevel, FeatureImage, PlanningMode, Feature } from '@/store/app-store';
 import type { ReasoningEffort, PhaseModelEntry, AgentModel } from '@automaker/types';
 import { supportsReasoningEffort } from '@automaker/types';
 import {
-  TestingTabContent,
   PrioritySelector,
   WorkModeSelector,
   PlanningModeSelect,
@@ -57,8 +48,6 @@ import {
   type AncestorContext,
 } from '@automaker/dependency-resolver';
 
-const logger = createLogger('AddFeatureDialog');
-
 /**
  * Determines the default work mode based on global settings and current worktree selection.
  *

apps/ui/src/components/views/board-view/dialogs/agent-output-modal.tsx

@@ -282,7 +282,7 @@ export function AgentOutputModal({
       }
 
       if (newContent) {
-        setOutput((prev) => `${prev}${newContent}`);
+        setStreamedContent((prev) => prev + newContent);
       }
     });
 

apps/ui/src/components/views/board-view/dialogs/completed-features-modal.tsx

@@ -1,4 +1,4 @@
-// @ts-nocheck
+// @ts-nocheck - completed features filtering and grouping with status transitions
 import {
   Dialog,
   DialogContent,

apps/ui/src/components/views/board-view/dialogs/dependency-tree-dialog.tsx

@@ -1,4 +1,4 @@
-// @ts-nocheck
+// @ts-nocheck - dependency tree visualization with recursive feature relationships
 import { useState, useEffect } from 'react';
 import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog';
 import { Feature } from '@/store/app-store';

apps/ui/src/components/views/board-view/dialogs/edit-feature-dialog.tsx

@@ -1,6 +1,5 @@
-// @ts-nocheck
+// @ts-nocheck - form state management with partial feature updates and validation
 import { useState, useEffect } from 'react';
-import { createLogger } from '@automaker/utils/logger';
 import {
   Dialog,
   DialogContent,
@@ -26,11 +25,10 @@ import { GitBranch, Cpu, FolderKanban, Settings2 } from 'lucide-react';
 import { useNavigate } from '@tanstack/react-router';
 import { toast } from 'sonner';
 import { cn, modelSupportsThinking } from '@/lib/utils';
-import { Feature, ModelAlias, ThinkingLevel, useAppStore, PlanningMode } from '@/store/app-store';
+import { Feature, ModelAlias, ThinkingLevel, PlanningMode } from '@/store/app-store';
 import type { ReasoningEffort, PhaseModelEntry, DescriptionHistoryEntry } from '@automaker/types';
 import { migrateModelId } from '@automaker/types';
 import {
-  TestingTabContent,
   PrioritySelector,
   WorkModeSelector,
   PlanningModeSelect,
@@ -45,8 +43,6 @@ import { Tooltip, TooltipContent, TooltipTrigger } from '@/components/ui/tooltip
 import { DependencyTreeDialog } from './dependency-tree-dialog';
 import { supportsReasoningEffort } from '@automaker/types';
 
-const logger = createLogger('EditFeatureDialog');
-
 interface EditFeatureDialogProps {
   feature: Feature | null;
   onClose: () => void;

apps/ui/src/components/views/board-view/dialogs/follow-up-dialog.tsx

@@ -1,5 +1,3 @@
-import { useState } from 'react';
-import { createLogger } from '@automaker/utils/logger';
 import {
   Dialog,
   DialogContent,
@@ -18,14 +16,7 @@ import {
 } from '@/components/ui/description-image-dropzone';
 import { MessageSquare } from 'lucide-react';
 import { Feature } from '@/store/app-store';
-import {
-  EnhanceWithAI,
-  EnhancementHistoryButton,
-  type EnhancementMode,
-  type BaseHistoryEntry,
-} from '../shared';
-
-const logger = createLogger('FollowUpDialog');
+import { EnhanceWithAI, EnhancementHistoryButton, type BaseHistoryEntry } from '../shared';
 
 /**
  * A single entry in the follow-up prompt history

apps/ui/src/components/views/board-view/dialogs/mass-edit-dialog.tsx

@@ -11,7 +11,6 @@ import { Button } from '@/components/ui/button';
 import { Checkbox } from '@/components/ui/checkbox';
 import { Label } from '@/components/ui/label';
 import { AlertCircle } from 'lucide-react';
-import { modelSupportsThinking } from '@/lib/utils';
 import { Feature, ModelAlias, ThinkingLevel, PlanningMode } from '@/store/app-store';
 import {
   TestingTabContent,
@@ -22,7 +21,7 @@ import {
 } from '../shared';
 import type { WorkMode } from '../shared';
 import { PhaseModelSelector } from '@/components/views/settings-view/model-defaults/phase-model-selector';
-import { isCursorModel, type PhaseModelEntry } from '@automaker/types';
+import type { PhaseModelEntry } from '@automaker/types';
 import { cn } from '@/lib/utils';
 
 interface MassEditDialogProps {
@@ -240,8 +239,6 @@ export function MassEditDialog({
   };
 
   const hasAnyApply = Object.values(applyState).some(Boolean);
-  const isCurrentModelCursor = isCursorModel(model);
-  const modelAllowsThinking = !isCurrentModelCursor && modelSupportsThinking(model);
 
   return (
     <Dialog open={open} onOpenChange={(open) => !open && onClose()}>