feat: add local agent MCP tools and optional source-grounded AI answers

apps/desktop/src-tauri/Cargo.lock

@@ -3688,6 +3688,15 @@ version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d68f2ec51b097e4c1a75b681a8bec621909b5e91f15bb7b840c4f2f7b01148b2"
 
+[[package]]
+name = "searchi-ai"
+version = "0.1.0"
+dependencies = [
+ "reqwest 0.12.28",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "searchi-assets"
 version = "0.1.0"
@@ -3720,6 +3729,7 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "image",
+ "searchi-ai",
  "searchi-assets",
  "searchi-core",
  "searchi-media",
@@ -3732,6 +3742,7 @@ dependencies = [
  "tauri-plugin-global-shortcut",
  "tauri-plugin-opener",
  "tempfile",
+ "uuid",
 ]
 
 [[package]]