Improve editing experience: KaTeX math preview, syntax highlighting, symbol autocomplete

- Replace broken MathML math preview with KaTeX for rendered formula tooltips
- Fix syntax highlighting by using proper HighlightStyle + syntaxHighlighting() instead of non-functional CSS class overrides
- Add math region background highlighting (subtle gold tint for $...$ and $$...$$ regions)
- Add Unicode symbol previews in autocomplete for Greek letters and math operators

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 37 insertions, 2 deletions

diff --git a/package-lock.json b/package-lock.json
index 4a4b460..6324729 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,13 +1,14 @@
 {
   "name": "lattex",
-  "version": "0.1.0",
+  "version": "0.2.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "lattex",
-      "version": "0.1.0",
+      "version": "0.2.2",
       "hasInstallScript": true,
+      "license": "AGPL-3.0",
       "dependencies": {
         "@codemirror/autocomplete": "^6.18.0",
         "@codemirror/commands": "^6.6.0",
@@ -20,6 +21,7 @@
         "@xterm/xterm": "^5.5.0",
         "chokidar": "^3.6.0",
         "diff-match-patch": "^1.0.5",
+        "katex": "^0.16.38",
         "node-pty": "^1.0.0",
         "pdfjs-dist": "^4.9.155",
         "react": "^18.3.1",
@@ -30,6 +32,7 @@
       },
       "devDependencies": {
         "@types/diff-match-patch": "^1.0.36",
+        "@types/katex": "^0.16.8",
         "@types/react": "^18.3.11",
         "@types/react-dom": "^18.3.1",
         "@types/ws": "^8.18.1",
@@ -2258,6 +2261,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/katex": {
+      "version": "0.16.8",
+      "resolved": "https://registry.npmjs.org/@types/katex/-/katex-0.16.8.tgz",
+      "integrity": "sha512-trgaNyfU+Xh2Tc+ABIb44a5AYUpicB3uwirOioeOkNPPbmgRNtcWyDeeFRzjPZENO9Vq8gvVqfhaaXWLlevVwg==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/keyv": {
       "version": "3.1.4",
       "resolved": "https://registry.npmjs.org/@types/keyv/-/keyv-3.1.4.tgz",
@@ -5381,6 +5391,31 @@
         "graceful-fs": "^4.1.6"
       }
     },
+    "node_modules/katex": {
+      "version": "0.16.38",
+      "resolved": "https://registry.npmjs.org/katex/-/katex-0.16.38.tgz",
+      "integrity": "sha512-cjHooZUmIAUmDsHBN+1n8LaZdpmbj03LtYeYPyuYB7OuloiaeaV6N4LcfjcnHVzGWjVQmKrxxTrpDcmSzEZQwQ==",
+      "funding": [
+        "https://opencollective.com/katex",
+        "https://github.com/sponsors/katex"
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "commander": "^8.3.0"
+      },
+      "bin": {
+        "katex": "cli.js"
+      }
+    },
+    "node_modules/katex/node_modules/commander": {
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-8.3.0.tgz",
+      "integrity": "sha512-OkTL9umf+He2DZkUq8f8J9of7yL6RJKI24dVITBmNfZBmri9zYZQrKkuXiKhyfPSu8tUhnVBB1iKXevvnlR4Ww==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 12"
+      }
+    },
     "node_modules/keyv": {
       "version": "4.5.4",
       "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.4.tgz",