aisman

Direct session 1, Step 2: Naming convention, project switch fixes, showDirectoryPicker fix, loading overlay
- Update aisman-instructions-template.md with ds_ naming convention
- Rename incorrectly named step 1 output file to ds_ format
- Clear project-specific browser state on project switch
- Skip unprocessed AI outputs warning when navigating to Settings tab
- Add application loading overlay on initial Dashboard page load
- Fix showDirectoryPicker SecurityError on first use after page refresh
- Add processed/ and ignored/ directory support with file moving
- Export storeProjectDir and deleteFile from AimFS module

Direct session 1, Step 3: UI fixes, CSS/JS loading, diff improvements, template tab, output file format

Issues implemented:
- ds_* outputs session number display improvements
- Show session temp number in ds_* output file lists
- Auto-update ProjectRootFolder in DB when folder picker is used
- CSS/JS dev vs prod conditional loading in .cshtml pages
- Fix Dashboard/Index.cshtml to use environment-aware CSS/JS loading
- Load log.js separately in dev when loading non-minified JS
- Add JS bundling-aware loading rules to copilot-instructions.md
- Unprocessed AI outputs dialog and navigation fixes
- Fix 'Unprocessed AI Outputs' title casing in dialogs
- Navigate to New detected AI outputs tab when user clicks OK on unprocessed warning
- Dashboard loading overlay improvements
- Semi-transparent backdrop for Dashboard loading overlay
- Replace loading spinner with large robot animation in Dashboard overlay
- AI tool instructions reference detection fixes
- Fix false-positive aisman reference not-found for copilot-instructions.md
- Re-check reference after Insert Aisman instructions button updates file
- Check folder permission before saving AI instruction files
- Fix Save button only enabled when AI instructions content differs from disk
- Aisman instructions template tab improvements
- Template Save button label 'Save (dev)' visible only in dev environment
- Rename 'Download latest version' button to 'Update to latest version'
- Change 'Update to latest version' to compare not download
- Download and integrate diff-match-patch library for word-level diffs
- Fix comparison window column titles and icons and date precision
- Check and fix first 5 session 000_001 output files format
- Update copilot-instructions git commit message format