feat: Add WASM support and browser extension infrastructure

- Add WASM build target and dependencies for all crates.
- Implement IndexedDB-based persistent storage for WASM.
- Create browser extension infrastructure (UI, scripting, etc.).
- Integrate Rhai scripting engine for secure automation.
- Implement user stories and documentation for the extension.

kvstore/Cargo.toml

@@ -7,16 +7,18 @@ edition = "2021"
 path = "src/lib.rs"
 
 [dependencies]
+tokio = { version = "1.37", features = ["rt", "macros"] }
 async-trait = "0.1"
 js-sys = "0.3"
 wasm-bindgen = "0.2"
 wasm-bindgen-futures = "0.4"
 thiserror = "1"
-tempfile = "3"
-
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 sled = { version = "0.34" }
+
+[target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies]
+tempfile = "3"
 tokio = { version = "1", features = ["rt-multi-thread", "macros"] }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]

kvstore/src/wasm.rs

@@ -28,13 +28,16 @@ use idb::{Database, TransactionMode, Factory};
 use wasm_bindgen::JsValue;
 #[cfg(target_arch = "wasm32")]
 use js_sys::Uint8Array;
+#[cfg(target_arch = "wasm32")]
+use std::rc::Rc;
 
 #[cfg(target_arch = "wasm32")]
 const STORE_NAME: &str = "kv";
 
 #[cfg(target_arch = "wasm32")]
+#[derive(Clone)]
 pub struct WasmStore {
-    db: Database,
+    db: Rc<Database>,
 }
 
 #[cfg(target_arch = "wasm32")]
@@ -50,7 +53,7 @@ impl WasmStore {
             }
         });
         let db = open_req.await.map_err(|e| KVError::Other(format!("IndexedDB open error: {e:?}")))?;
-        Ok(Self { db })
+        Ok(Self { db: Rc::new(db) })
     }
 }