fix: landing page Unicode rendering, orbit overlap, and add PDF OCR fallback

- Fix Unicode escapes (\u26A1, \u2192, \u{1F6E1}) rendered as literal text in JSX
  by wrapping them in JSX expressions
- Increase orbit radii (520/320px -> 720/480px) so items don't overlap hero text
- Add orbit animation keyframes (orbit-slow, orbit-med) to globals.css
- Add Tesseract.js OCR fallback for scanned/image-based PDFs that have no
  extractable text layer — renders pages to canvas then runs browser-based OCR
- Thread onProgress through all PDF conversion functions for OCR progress

package-lock.json

@@ -29,6 +29,7 @@
         "react": "19.2.3",
         "react-dom": "19.2.3",
         "smol-toml": "^1.6.0",
+        "tesseract.js": "^7.0.0",
         "woff2-encoder": "^2.0.0",
         "xlsx": "^0.18.5"
       },
@@ -2862,6 +2863,12 @@
       "integrity": "sha512-iD3898SR7sWVRHbiQv+sHUtHnMvC1o3nW5rAcqnq3uOn07DSAppZYUkIGslDz6gXC7HfunPe7YVBgoEJASPcHA==",
       "license": "MIT"
     },
+    "node_modules/bmp-js": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/bmp-js/-/bmp-js-0.1.0.tgz",
+      "integrity": "sha512-vHdS19CnY3hwiNdkaqk93DvjVLfbEcI8mys4UjuWrlX1haDmroo8o4xCzh4wD6DGV6HxRCyauwhHRqMTfERtjw==",
+      "license": "MIT"
+    },
     "node_modules/brace-expansion": {
       "version": "1.1.12",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
@@ -4635,6 +4642,12 @@
       "integrity": "sha512-4EC57ddXrkaF0x83Oj8sM6SLQHAWXw90Skqu2M4AEWENZ3F02dFJE/GARA8igO79tcgYqGrD7ae4f5L3um2lgg==",
       "license": "ISC"
     },
+    "node_modules/idb-keyval": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/idb-keyval/-/idb-keyval-6.2.2.tgz",
+      "integrity": "sha512-yjD9nARJ/jb1g+CvD0tlhUHOrJ9Sy0P8T9MF3YaLlHnSRpwPfpTX0XIvpmw3gAJUmEu3FiICLBDPXVwyEvrleg==",
+      "license": "Apache-2.0"
+    },
     "node_modules/ignore": {
       "version": "5.3.2",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.3.2.tgz",
@@ -5089,6 +5102,12 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/is-url": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/is-url/-/is-url-1.2.4.tgz",
+      "integrity": "sha512-ITvGim8FhRiYe4IQ5uHSkj7pVaPDrCTkNd3yq3cV7iZAcJdHTUMPMEHcqSOy9xZ9qFenQCvi+2wjH9a1nXqHww==",
+      "license": "MIT"
+    },
     "node_modules/is-weakmap": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/is-weakmap/-/is-weakmap-2.0.2.tgz",
@@ -5946,6 +5965,26 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/node-fetch": {
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
+      "integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
+      "license": "MIT",
+      "dependencies": {
+        "whatwg-url": "^5.0.0"
+      },
+      "engines": {
+        "node": "4.x || >=6.0.0"
+      },
+      "peerDependencies": {
+        "encoding": "^0.1.0"
+      },
+      "peerDependenciesMeta": {
+        "encoding": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/node-readable-to-web-readable-stream": {
       "version": "0.4.2",
       "resolved": "https://registry.npmjs.org/node-readable-to-web-readable-stream/-/node-readable-to-web-readable-stream-0.4.2.tgz",
@@ -6083,6 +6122,15 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/opencollective-postinstall": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/opencollective-postinstall/-/opencollective-postinstall-2.0.3.tgz",
+      "integrity": "sha512-8AV/sCtuzUeTo8gQK5qDZzARrulB3egtLzFgteqB2tcT4Mw7B8Kt7JcDHmltjz6FOAHsvTevk70gZEbhM4ZS9Q==",
+      "license": "MIT",
+      "bin": {
+        "opencollective-postinstall": "index.js"
+      }
+    },
     "node_modules/opentype.js": {
       "version": "1.3.4",
       "resolved": "https://registry.npmjs.org/opentype.js/-/opentype.js-1.3.4.tgz",
@@ -6487,8 +6535,7 @@
       "version": "0.13.11",
       "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.11.tgz",
       "integrity": "sha512-kY1AZVr2Ra+t+piVaJ4gxaFaReZVH40AKNo7UCX6W+dEwBo/2oZJzqfuN1qLq1oL45o56cPaTXELwrTh8Fpggg==",
-      "license": "MIT",
-      "optional": true
+      "license": "MIT"
     },
     "node_modules/regexp.prototype.flags": {
       "version": "1.5.4",
@@ -7208,6 +7255,30 @@
         "url": "https://opencollective.com/webpack"
       }
     },
+    "node_modules/tesseract.js": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/tesseract.js/-/tesseract.js-7.0.0.tgz",
+      "integrity": "sha512-exPBkd+z+wM1BuMkx/Bjv43OeLBxhL5kKWsz/9JY+DXcXdiBjiAch0V49QR3oAJqCaL5qURE0vx9Eo+G5YE7mA==",
+      "hasInstallScript": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "bmp-js": "^0.1.0",
+        "idb-keyval": "^6.2.0",
+        "is-url": "^1.2.4",
+        "node-fetch": "^2.6.9",
+        "opencollective-postinstall": "^2.0.3",
+        "regenerator-runtime": "^0.13.3",
+        "tesseract.js-core": "^7.0.0",
+        "wasm-feature-detect": "^1.8.0",
+        "zlibjs": "^0.3.1"
+      }
+    },
+    "node_modules/tesseract.js-core": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/tesseract.js-core/-/tesseract.js-core-7.0.0.tgz",
+      "integrity": "sha512-WnNH518NzmbSq9zgTPeoF8c+xmilS8rFIl1YKbk/ptuuc7p6cLNELNuPAzcmsYw450ca6bLa8j3t0VAtq435Vw==",
+      "license": "Apache-2.0"
+    },
     "node_modules/text-segmentation": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/text-segmentation/-/text-segmentation-1.0.3.tgz",
@@ -7284,6 +7355,12 @@
         "node": ">=8.0"
       }
     },
+    "node_modules/tr46": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==",
+      "license": "MIT"
+    },
     "node_modules/ts-api-utils": {
       "version": "2.4.0",
       "resolved": "https://registry.npmjs.org/ts-api-utils/-/ts-api-utils-2.4.0.tgz",
@@ -7580,6 +7657,28 @@
         "base64-arraybuffer": "^1.0.2"
       }
     },
+    "node_modules/wasm-feature-detect": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/wasm-feature-detect/-/wasm-feature-detect-1.8.0.tgz",
+      "integrity": "sha512-zksaLKM2fVlnB5jQQDqKXXwYHLQUVH9es+5TOOHwGOVJOCeRBCiPjwSg+3tN2AdTCzjgli4jijCH290kXb/zWQ==",
+      "license": "Apache-2.0"
+    },
+    "node_modules/webidl-conversions": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+      "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
+      "license": "BSD-2-Clause"
+    },
+    "node_modules/whatwg-url": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+      "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
+      "license": "MIT",
+      "dependencies": {
+        "tr46": "~0.0.3",
+        "webidl-conversions": "^3.0.0"
+      }
+    },
     "node_modules/which": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
@@ -7790,6 +7889,15 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/zlibjs": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/zlibjs/-/zlibjs-0.3.1.tgz",
+      "integrity": "sha512-+J9RrgTKOmlxFSDHo0pI1xM6BLVUv+o0ZT9ANtCxGkjIVCCUdx9alUF8Gm+dGLKbkkkidWIHFDZHDMpfITt4+w==",
+      "license": "MIT",
+      "engines": {
+        "node": "*"
+      }
+    },
     "node_modules/zod": {
       "version": "4.3.6",
       "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",