feat: initial PSG Launcher scaffold

manifests/apps.json

@@ -0,0 +1,27 @@
+{
+  "schema_version": 1,
+  "generated_at": "2026-05-27T00:00:00Z",
+  "minimum_launcher_version": "0.1.0",
+  "apps": [
+    {
+      "id": "psg-conduit",
+      "name": "PSG Conduit",
+      "description": "High-performance network conduit and relay tool.",
+      "category": "network",
+      "current_version": "0.1.0",
+      "icon_url": null,
+      "changelog": "Initial release.",
+      "tags": ["network", "conduit", "relay"],
+      "platforms": {
+        "windows-x86_64": {
+          "download_url": "https://gitea.YOURDOMAIN.com/OWNER/psg-conduit/releases/download/v0.1.0/psg-conduit.exe",
+          "hash_sha256": "REPLACE_WITH_SHA256_OF_EXE",
+          "size_bytes": 0,
+          "install_type": "portable",
+          "install_path": null,
+          "signature": "REPLACE_WITH_BASE64_ED25519_SIG_OF_EXE_BYTES"
+        }
+      }
+    }
+  ]
+}

manifests/apps.json.sig

@@ -0,0 +1 @@
+hYpFWHlcLsJK/3npBxmBU2Ao7HBOO09hXzan27Vw2dZuivUCII7R4uBgA1no2rUKKqHaLWTDBldNXTOuiYX9CA==

manifests/latest.json

@@ -0,0 +1,11 @@
+{
+  "version": "0.1.0",
+  "notes": "Initial release of PSG Launcher.",
+  "pub_date": "2026-05-27T00:00:00Z",
+  "platforms": {
+    "windows-x86_64": {
+      "signature": "REPLACE_WITH_TAURI_SIGNER_SIG",
+      "url": "https://gitea.YOURDOMAIN.com/OWNER/psg-launcher/releases/download/v0.1.0/PSG-Launcher_0.1.0_x64-setup.exe"
+    }
+  }
+}