Add Ralph Wiggum agent setup and project specifications

- Add project constitution with vision, principles, and autonomy settings
- Add 15 feature specifications covering full app scope
- Configure agent entry points (AGENTS.md, CLAUDE.md)
- Add build prompt and speckit command for spec creation
- Include comprehensive .gitignore for iOS development

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

specs/13-export-view.md

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+# Export View
+
+## Description
+Export edited photos at full resolution to Photo Library or Files.
+
+## Acceptance Criteria
+- [ ] Export button in editor triggers export flow
+- [ ] Full resolution render from operation stack
+- [ ] Progress indicator during export rendering
+- [ ] Export options:
+  - Save to Photo Library (requests write permission)
+  - Share sheet (AirDrop, Messages, etc.)
+  - Save to Files
+- [ ] Export formats: JPEG (quality slider 0.7-1.0), PNG
+- [ ] HEIC output supported on compatible devices
+- [ ] Metadata preserved from original where possible
+- [ ] Success confirmation after save
+- [ ] Export time within spec targets:
+  - 12MP: < 4 seconds
+  - 48MP: < 12 seconds
+- [ ] Memory management: tile-based for large images
+
+## Technical Notes
+- Request `PHPhotoLibrary.authorizationStatus(for: .addOnly)` for write
+- Use `PHAssetChangeRequest.creationRequestForAsset` to save
+- For share sheet, create temporary file, clean up after
+- Consider background processing for very large exports
+
+## Edge Cases
+- Export during low memory: show "Image too large, try cropping" error
+- Permission denied: show guidance to enable in Settings
+- Export cancelled mid-process: clean up partial work
+- Disk space insufficient: detect and show appropriate error