feat: add media upload pipeline with multipart support, blurhash generation, and R2 storage

- Add project_media table with image/video variants, ordering, and metadata
- Implement multipart upload handlers with 50MB limit
- Generate blurhash placeholders and resize images to thumb/medium/full variants
- Update ProjectCard to use media carousel instead of mock gradients
- Add MediaManager component for drag-drop upload and reordering

web/bun.lock

@@ -14,12 +14,14 @@
         "@logtape/logtape": "^1.3.5",
         "@resvg/resvg-js": "^2.6.2",
         "@xevion/satori-html": "^0.4.1",
+        "blurhash": "^2.0.5",
         "clsx": "^2.1.1",
         "overlayscrollbars": "^2.13.0",
         "overlayscrollbars-svelte": "^0.5.5",
         "posthog-js": "^1.321.1",
         "posthog-node": "^5.21.0",
         "satori": "^0.18.3",
+        "svelte-dnd-action": "^0.9.69",
         "tailwind-merge": "^3.3.1",
       },
       "devDependencies": {
@@ -412,6 +414,8 @@
 
     "base64-js": ["base64-js@0.0.8", "", {}, "sha512-3XSA2cR/h/73EzlXXdU6YNycmYI7+kicTxks4eJg2g39biHR84slg2+des+p7iHYhbRg/udIS4TD53WabcOUkw=="],
 
+    "blurhash": ["blurhash@2.0.5", "", {}, "sha512-cRygWd7kGBQO3VEhPiTgq4Wc43ctsM+o46urrmPOiuAe+07fzlSB9OJVdpgDL0jPqXUVQ9ht7aq7kxOeJHRK+w=="],
+
     "brace-expansion": ["brace-expansion@1.1.12", "", { "dependencies": { "balanced-match": "^1.0.0", "concat-map": "0.0.1" } }, "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg=="],
 
     "buffer-from": ["buffer-from@1.1.2", "", {}, "sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ=="],
@@ -762,6 +766,8 @@
 
     "svelte-check": ["svelte-check@4.3.5", "", { "dependencies": { "@jridgewell/trace-mapping": "^0.3.25", "chokidar": "^4.0.1", "fdir": "^6.2.0", "picocolors": "^1.0.0", "sade": "^1.7.4" }, "peerDependencies": { "svelte": "^4.0.0 || ^5.0.0-next.0", "typescript": ">=5.0.0" }, "bin": { "svelte-check": "bin/svelte-check" } }, "sha512-e4VWZETyXaKGhpkxOXP+B/d0Fp/zKViZoJmneZWe/05Y2aqSKj3YN2nLfYPJBQ87WEiY4BQCQ9hWGu9mPT1a1Q=="],
 
+    "svelte-dnd-action": ["svelte-dnd-action@0.9.69", "", { "peerDependencies": { "svelte": ">=3.23.0 || ^5.0.0-next.0" } }, "sha512-NAmSOH7htJoYraTQvr+q5whlIuVoq88vEuHr4NcFgscDRUxfWPPxgie2OoxepBCQCikrXZV4pqV86aun60wVyw=="],
+
     "svelte-eslint-parser": ["svelte-eslint-parser@1.4.1", "", { "dependencies": { "eslint-scope": "^8.2.0", "eslint-visitor-keys": "^4.0.0", "espree": "^10.0.0", "postcss": "^8.4.49", "postcss-scss": "^4.0.9", "postcss-selector-parser": "^7.0.0" }, "peerDependencies": { "svelte": "^3.37.0 || ^4.0.0 || ^5.0.0" }, "optionalPeers": ["svelte"] }, "sha512-1eqkfQ93goAhjAXxZiu1SaKI9+0/sxp4JIWQwUpsz7ybehRE5L8dNuz7Iry7K22R47p5/+s9EM+38nHV2OlgXA=="],
 
     "tailwind-merge": ["tailwind-merge@3.4.0", "", {}, "sha512-uSaO4gnW+b3Y2aWoWfFpX62vn2sR3skfhbjsEnaBI81WD1wBLlHZe5sWf0AqjksNdYTbGBEd0UasQMT3SNV15g=="],