Typesafe dialogs (vibe-kanban) (#1304)

* Excellent! ✅ All tasks completed successfully. Let me create a summary document:

## ✅ Typesafe Dialogs Refactoring Complete

### What Was Changed

**1. New Typesafe Modal System** ([lib/modals.ts](file:///private/var/folders/m1/9q_ct1913z10v6wbnv54j25r0000gn/T/vibe-kanban/worktrees/e9a3-typesafe-dialogs/frontend/src/lib/modals.ts))
- Created `defineModal<ResultType>(component)` to brand dialogs with return types
- Created `showModal(modal, props)` with full type inference for props and return values
- Added typed `hideModal()` and `removeModal()` helpers

**2. Modals Registry** ([components/dialogs/index.ts](file:///private/var/folders/m1/9q_ct1913z10v6wbnv54j25r0000gn/T/vibe-kanban/worktrees/e9a3-typesafe-dialogs/frontend/src/components/dialogs/index.ts))
- Exported `Modals` object with all 27 dialogs
- Each modal properly typed with its result type
- Autocomplete available via `Modals.*`

**3. ESLint Enforcement** ([frontend/.eslintrc.cjs](file:///private/var/folders/m1/9q_ct1913z10v6wbnv54j25r0000gn/T/vibe-kanban/worktrees/e9a3-typesafe-dialogs/frontend/.eslintrc.cjs))
- Blocks direct `NiceModal.show()` usage
- Blocks `NiceModal.register()` usage
- Restricts `NiceModal` imports to lib/modals.ts, App.tsx, and dialog files

**4. Removed String Registrations** ([main.tsx](file:///private/var/folders/m1/9q_ct1913z10v6wbnv54j25r0000gn/T/vibe-kanban/worktrees/e9a3-typesafe-dialogs/frontend/src/main.tsx))
- Deleted 27 `NiceModal.register('string-id', Component)` calls
- Dialogs now register automatically when used

**5. Migrated All Call Sites** (14+ files)
- Replaced `NiceModal.show('string-id', props)` → `showModal(Modals.X, props)`
- All props and return types now fully typed
- Legacy helper functions maintained for backward compatibility

### Usage Examples

```typescript
// Before (not type-safe):
const result = await NiceModal.show('onboarding');
// ❌ No autocomplete, no type checking, string can be misspelled

// After (fully type-safe):
const result = await showModal(Modals.Onboarding, {});
// ✅ result is typed as OnboardingResult
// ✅ Props are checked at compile time
// ✅ Autocomplete for modal names
```

### Verification

- ✅ **Type check passes**: `pnpm run check`
- ✅ **Lint passes**: 0 errors (113 warnings, none related to this refactor)
- ✅ **ESLint enforces pattern**: Prevents future regressions

The refactoring is complete and all code is now fully typesafe!

* Cleanup script changes for task attempt e9a36404-ba8e-4c84-9cca-1a1b7d68fdf7

* incremental

* ## ✅ Component-Based Registration Complete!

Successfully eliminated the centralized `Modals` registry and migrated to component-based dialog registration.

### What Changed

**1. Each dialog now brands itself** (30 dialog files)
- Added `defineModal<ResultType>()` at the source
- Example: `export const FolderPickerDialog = defineModal<string | null>(FolderPickerDialogImpl)`

**2. Removed centralized bottleneck**
- Deleted `Modals` registry object from [components/dialogs/index.ts](file:///private/var/folders/m1/9q_ct1913z10v6wbnv54j25r0000gn/T/vibe-kanban/worktrees/e9a3-typesafe-dialogs/frontend/src/components/dialogs/index.ts)
- Removed 100+ lines of duplication
- index.ts now just re-exports for convenience

**3. Fixed circular dependency**
- Removed legacy helpers from [lib/modals.ts](file:///private/var/folders/m1/9q_ct1913z10v6wbnv54j25r0000gn/T/vibe-kanban/worktrees/e9a3-typesafe-dialogs/frontend/src/lib/modals.ts)
- lib/modals.ts no longer imports from components

**4. Updated all call sites** (24 files)
- Changed from `showModal(Modals.X, props)` → `showModal(XDialog, props)`
- Added direct component imports
- Guided by TypeScript compiler errors

### Benefits Achieved

✅ **No duplication** - dialogs defined once in their own files
✅ **No circular deps** - clean import hierarchy
✅ **Easy to add dialogs** - just brand and use
✅ **Still fully typesafe** - props and return types inferred
✅ **Clear imports** - see exactly which dialogs are used
✅ **Compiler verified** - `pnpm run check` passes
✅ **Lint clean** - 0 errors

* Cleanup script changes for task attempt e9a36404-ba8e-4c84-9cca-1a1b7d68fdf7

* Refactor dialog calling (vibe-kanban 8586934a)

Instead of `showModal(CreatePRDialog)` it should be `CreatePRDialog.show()`, also we should add the same for `.hide()`.

We should enforce the pattern using eslint, then use the lint errors to guide where to refactor.

* reset merge conflicted dialogs to main

* Fix dialog errors

* fmt

frontend/src/hooks/useOpenInEditor.ts

@@ -1,6 +1,6 @@
 import { useCallback } from 'react';
 import { attemptsApi } from '@/lib/api';
-import NiceModal from '@ebay/nice-modal-react';
+import { EditorSelectionDialog } from '@/components/dialogs/tasks/EditorSelectionDialog';
 import type { EditorType } from 'shared/types';
 
 type OpenEditorOptions = {
@@ -35,7 +35,7 @@ export function useOpenInEditor(
           if (onShowEditorDialog) {
             onShowEditorDialog();
           } else {
-            NiceModal.show('editor-selection', {
+            EditorSelectionDialog.show({
               selectedAttemptId: attemptId,
               filePath,
             });

frontend/src/hooks/useOpenProjectInEditor.ts

@@ -1,6 +1,6 @@
 import { useCallback } from 'react';
 import { projectsApi } from '@/lib/api';
-import NiceModal from '@ebay/nice-modal-react';
+import { ProjectEditorSelectionDialog } from '@/components/dialogs/projects/ProjectEditorSelectionDialog';
 import type { EditorType, Project } from 'shared/types';
 
 export function useOpenProjectInEditor(
@@ -24,7 +24,7 @@ export function useOpenProjectInEditor(
           if (onShowEditorDialog) {
             onShowEditorDialog();
           } else {
-            NiceModal.show('project-editor-selection', {
+            ProjectEditorSelectionDialog.show({
               selectedProject: project,
             });
           }