feat: expand diff syntax highlighting languages

packages/server/package.json

@@ -66,13 +66,20 @@
     "@deepgram/sdk": "^3.4.0",
     "@getpaseo/relay": "0.1.30",
     "@lezer/common": "^1.5.0",
+    "@lezer/cpp": "^1.1.5",
     "@lezer/css": "^1.3.0",
+    "@lezer/go": "^1.0.1",
     "@lezer/highlight": "^1.2.3",
     "@lezer/html": "^1.3.13",
+    "@lezer/java": "^1.1.3",
     "@lezer/javascript": "^1.5.4",
     "@lezer/json": "^1.0.3",
     "@lezer/markdown": "^1.6.2",
+    "@lezer/php": "^1.0.5",
     "@lezer/python": "^1.1.18",
+    "@lezer/rust": "^1.0.2",
+    "@lezer/xml": "^1.0.6",
+    "@lezer/yaml": "^1.0.4",
     "@modelcontextprotocol/sdk": "^1.20.1",
     "@opencode-ai/sdk": "1.2.6",
     "@sctg/sentencepiece-js": "^1.1.0",