[BUILD] - exif-stripper Implementation

[github-actions]

New Implementation

This is a new implementation of the EXIF Data Stripper & Viewer from specs/005-exif-stripper/.

Implemented Features

US1 — Strip & Download (P1 MVP)

• Drag-and-drop / file picker for JPEG and PNG files
• Human-readable EXIF metadata table (tag label, value, category badge)
• GPS warning banner with clickable Google Maps link showing exact coordinates
• Strip All & Download — lossless JPEG binary splice (zero re-encoding); PNG via Canvas re-encode
• Clear / Reset returns UI to initial state
• "No metadata detected" empty state

US2 — Selective Strip (P2)

• Field group checkboxes: Location / GPS, Device Info, Timestamps, Camera Settings, All (master toggle)
• Strip Selected & Download — rebuilds TIFF IFD from scratch, excluding only the chosen groups
• Remove GPS Only shortcut button in the GPS warning banner
• Warning toast when no groups are selected

US3 — Batch Strip (P3)

• Accepts up to 10 JPEG/PNG files simultaneously
• Per-file summary list: filename, GPS indicator badge, EXIF tag count, strip status
• Click any file in the list to view its full metadata table
• Strip All & Download as ZIP — processes all files, packages into a single archive via JSZip
• Progress indicator showing current file being processed

SEO & Structured Data

• SoftwareApplication + HowTo JSON-LD structured data blocks
• Keyword-optimised title, meta description, and How to Use section
• Canonical URL and Open Graph tags

Shared Assets & Dependencies

• JSZip 3.10.1 vendored to tools/vendor/jszip/jszip.min.js
  • Added to package.json, scripts/sync-vendor.mjs, and tools/vendor/manifest.json
  • Copied from node_modules via npm run vendor:sync
• /tools/common.css reused for all shared primitives (tokens, buttons, drop zone, badges)
• No CDN references — all runtime assets are committed

File Structure

tools/exif-stripper.html          ← tool entry page
tools/exif-stripper/main.js       ← EXIF parser, strippers, UI logic (~700 lines ES Module)
tools/exif-stripper/style.css     ← tool-specific styles
tools/vendor/jszip/jszip.min.js   ← shared vendored JSZip
tools/vendor/manifest.json        ← updated with jszip entry

How to Test

Open tools/exif-stripper.html in a browser:

1. Drop a JPEG taken with a smartphone (should show GPS warning + full metadata table)
2. Click Strip All & Download — open the result in an EXIF reader to confirm zero tags remain
3. Reload, uncheck all groups except Location, click Strip Selected & Download — confirm GPS gone but timestamps and device info remain
4. Drop 3–5 JPEG files, click Strip All & Download as ZIP — confirm zip contains stripped copies
5. Open DevTools Network tab during any operation — confirm zero outbound requests

Closes

Closes #38

Generated by Lead Developer: Build · ◷

[JackTreble]

double trigger #48