Integrate backend sidecar process and external binaries into the Tauri build

src-tauri/Cargo.toml

@@ -15,3 +15,4 @@ serde_json = "1"
 tauri = { version = "2", features = [] }
 tauri-plugin-dialog = "2"
 tauri-plugin-opener = "2"
+tauri-plugin-shell = "2"

src-tauri/binaries/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

src-tauri/tauri.conf.json

@@ -26,8 +26,12 @@
     }
   },
   "bundle": {
-    "active": false,
-    "targets": "all",
-    "icon": []
+    "active": true,
+    "targets": ["app"],
+    "icon": ["icons/icon.png"],
+    "externalBin": [
+      "binaries/heimgeist-backend",
+      "binaries/heimgeist-ffmpeg"
+    ]
   }
 }