feat: expand file extension icon mappings and use dynamic icons in dashboard cards

- Add comprehensive file extension mappings organized by category (text, web, programming, data, config, shell, documents, images, audio, video, archives, fonts)
- Add support for 100+ file extensions including modern languages (Rust, Go, Swift, Kotlin, Zig, etc.)
- Add media file support (images, audio, video) with appropriate icons
- Add archive and font file type mappings
- Replace hardcoded SVG in dashboard cards with dynamic icon

frontend/app.js

@@ -59,32 +59,35 @@
   // File extension → Lucide icon mapping
   // ---------------------------------------------------------------------------
   const EXT_ICONS = {
+    // Text files
     ".md": "file-text",
     ".txt": "file-text",
     ".log": "file-text",
-    ".py": "file-code",
+    ".readme": "file-text",
-    ".js": "file-code",
+    ".rst": "file-text",
-    ".ts": "file-code",
+    ".adoc": "file-text",
-    ".jsx": "file-code",
+    
-    ".tsx": "file-code",
+    // Web development
     ".html": "file-code",
+    ".htm": "file-code",
     ".css": "file-code",
     ".scss": "file-code",
+    ".sass": "file-code",
     ".less": "file-code",
-    ".json": "file-json",
+    ".js": "file-code",
-    ".yaml": "file-cog",
+    ".jsx": "file-code",
-    ".yml": "file-cog",
+    ".ts": "file-code",
-    ".toml": "file-cog",
+    ".tsx": "file-code",
-    ".xml": "file-code",
+    ".vue": "file-code",
-    ".sh": "terminal",
+    ".svelte": "file-code",
-    ".bash": "terminal",
+    
-    ".zsh": "terminal",
+    // Programming languages
-    ".bat": "terminal",
+    ".py": "file-code",
-    ".cmd": "terminal",
-    ".ps1": "terminal",
     ".java": "file-code",
     ".c": "file-code",
     ".cpp": "file-code",
+    ".cc": "file-code",
+    ".cxx": "file-code",
     ".h": "file-code",
     ".hpp": "file-code",
     ".cs": "file-code",
@@ -92,12 +95,164 @@
     ".rs": "file-code",
     ".rb": "file-code",
     ".php": "file-code",
-    ".sql": "database",
+    ".swift": "file-code",
+    ".kt": "file-code",
+    ".scala": "file-code",
+    ".r": "file-code",
+    ".m": "file-code",
+    ".pl": "file-code",
+    ".lua": "file-code",
+    ".dart": "file-code",
+    ".nim": "file-code",
+    ".zig": "file-code",
+    ".odin": "file-code",
+    ".v": "file-code",
+    ".cr": "file-code",
+    ".ex": "file-code",
+    ".exs": "file-code",
+    ".elm": "file-code",
+    ".purs": "file-code",
+    ".hs": "file-code",
+    ".ml": "file-code",
+    ".ocaml": "file-code",
+    ".fs": "file-code",
+    ".fsx": "file-code",
+    ".vb": "file-code",
+    ".pas": "file-code",
+    ".pp": "file-code",
+    ".inc": "file-code",
+    
+    // Data formats
+    ".json": "file-json",
+    ".yaml": "file-cog",
+    ".yml": "file-cog",
+    ".toml": "file-cog",
+    ".xml": "file-code",
     ".csv": "table",
+    ".tsv": "table",
+    ".sql": "database",
+    ".db": "database",
+    ".sqlite": "database",
+    ".sqlite3": "database",
+    ".parquet": "database",
+    ".avro": "database",
+    
+    // Configuration files
     ".ini": "file-cog",
     ".cfg": "file-cog",
     ".conf": "file-cog",
     ".env": "file-cog",
+    ".dockerfile": "file-cog",
+    ".gitignore": "file-cog",
+    ".gitattributes": "file-cog",
+    ".editorconfig": "file-cog",
+    ".eslintrc": "file-cog",
+    ".prettierrc": "file-cog",
+    ".babelrc": "file-cog",
+    ".tsconfig": "file-cog",
+    "package.json": "file-cog",
+    "package-lock.json": "file-cog",
+    "yarn.lock": "file-cog",
+    "composer.json": "file-cog",
+    "requirements.txt": "file-cog",
+    "pipfile": "file-cog",
+    "gemfile": "file-cog",
+    "cargo.toml": "file-cog",
+    "go.mod": "file-cog",
+    "go.sum": "file-cog",
+    "pom.xml": "file-cog",
+    "build.gradle": "file-cog",
+    "cmakelists.txt": "file-cog",
+    "makefile": "file-cog",
+    
+    // Shell scripts
+    ".sh": "terminal",
+    ".bash": "terminal",
+    ".zsh": "terminal",
+    ".fish": "terminal",
+    ".bat": "terminal",
+    ".cmd": "terminal",
+    ".ps1": "terminal",
+    ".psm1": "terminal",
+    ".psd1": "terminal",
+    
+    // Document formats
+    ".pdf": "file-text",
+    ".doc": "file-text",
+    ".docx": "file-text",
+    ".rtf": "file-text",
+    ".odt": "file-text",
+    ".tex": "file-text",
+    ".latex": "file-text",
+    
+    // Image files
+    ".png": "file-image",
+    ".jpg": "file-image",
+    ".jpeg": "file-image",
+    ".gif": "file-image",
+    ".svg": "file-image",
+    ".webp": "file-image",
+    ".bmp": "file-image",
+    ".ico": "file-image",
+    ".tiff": "file-image",
+    ".tif": "file-image",
+    
+    // Audio files
+    ".mp3": "file-music",
+    ".wav": "file-music",
+    ".flac": "file-music",
+    ".aac": "file-music",
+    ".ogg": "file-music",
+    ".m4a": "file-music",
+    ".wma": "file-music",
+    
+    // Video files
+    ".mp4": "play",
+    ".avi": "play",
+    ".mov": "play",
+    ".wmv": "play",
+    ".flv": "play",
+    ".webm": "play",
+    ".mkv": "play",
+    ".m4v": "play",
+    ".3gp": "play",
+    
+    // Archive files
+    ".zip": "file-archive",
+    ".rar": "file-archive",
+    ".7z": "file-archive",
+    ".tar": "file-archive",
+    ".gz": "file-archive",
+    ".tgz": "file-archive",
+    ".bz2": "file-archive",
+    ".xz": "file-archive",
+    ".deb": "file-archive",
+    ".rpm": "file-archive",
+    ".dmg": "file-archive",
+    ".pkg": "file-archive",
+    ".msi": "file-archive",
+    ".exe": "file-archive",
+    
+    // Font files
+    ".ttf": "file-type",
+    ".otf": "file-type",
+    ".woff": "file-type",
+    ".woff2": "file-type",
+    ".eot": "file-type",
+    
+    // Other common files
+    ".key": "file-cog",
+    ".pem": "file-cog",
+    ".crt": "file-cog",
+    ".cert": "file-cog",
+    ".p12": "file-cog",
+    ".pfx": "file-cog",
+    ".lock": "file-cog",
+    ".tmp": "file",
+    ".bak": "file",
+    ".old": "file",
+    ".orig": "file",
+    ".save": "file",
   };
 
   function getFileIcon(name) {
@@ -3054,8 +3209,8 @@
 
       const icon = document.createElement("div");
       icon.className = "dashboard-card-icon";
-      icon.innerHTML =
+      const fileIconName = getFileIcon(file.path);
-        '<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M14.5 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V7.5L14.5 2z"/><polyline points="14 2 14 8 20 8"/></svg>';
+      icon.appendChild(icon(fileIconName, 24));
 
       const badge = document.createElement("span");
       badge.className = "dashboard-vault-badge";