feat: add VS Code extensions for claudocs companion and code heatmap

package.json

@@ -0,0 +1,48 @@
+{
+  "name": "codeheat",
+  "displayName": "CodeHeat: Local Time Tracker",
+  "description": "Tracks time spent per project and per file, fully local, with a heatmap in the file explorer. No account, no server, no telemetry.",
+  "version": "0.1.0",
+  "publisher": "foksiu-local",
+  "engines": {
+    "vscode": "^1.85.0"
+  },
+  "categories": ["Other", "Visualization"],
+  "activationEvents": ["onStartupFinished"],
+  "main": "./extension.js",
+  "contributes": {
+    "commands": [
+      {
+        "command": "codeheat.showSummary",
+        "title": "CodeHeat: Show Time Summary"
+      },
+      {
+        "command": "codeheat.toggleTracking",
+        "title": "CodeHeat: Toggle Tracking"
+      },
+      {
+        "command": "codeheat.exportData",
+        "title": "CodeHeat: Export Data as JSON"
+      },
+      {
+        "command": "codeheat.clearProjectData",
+        "title": "CodeHeat: Clear Data for This Project"
+      }
+    ],
+    "configuration": {
+      "title": "CodeHeat",
+      "properties": {
+        "codeheat.idleThresholdMinutes": {
+          "type": "number",
+          "default": 3,
+          "description": "Minutes of no editor activity before tracking pauses."
+        },
+        "codeheat.heatmapEnabled": {
+          "type": "boolean",
+          "default": true,
+          "description": "Show heat badges on files in the explorer based on time spent."
+        }
+      }
+    }
+  }
+}