Simplify build.sh and update run.sh for self-contained execution

- Simplified build.sh to just build in release mode with warning suppression
- Updated run.sh to build first, then start supervisor and admin UI together
- Run script now starts both supervisor API and admin UI in background
- Added proper cleanup handler for graceful shutdown
- Removed admin UI compilation errors by fixing JsValue handling
- Added list_jobs method to WASM client for admin UI compatibility

src/runner.rs

@@ -84,24 +84,6 @@ impl Runner {
             extra_args: config.extra_args,
         }
     }
-
-    /// Create a new runner with the given parameters
-    pub fn new(
-        id: String,
-        name: String,
-        namespace: String,
-        command: PathBuf,
-        redis_url: String,
-    ) -> Self {
-        Self {
-            id,
-            name,
-            namespace,
-            command,
-            redis_url,
-            extra_args: Vec::new(),
-        }
-    }
     
     /// Create a new runner with extra arguments
     pub fn with_args(
@@ -189,6 +171,12 @@ pub enum RunnerError {
         source: hero_job::JobError,
     },
     
+    #[error("Job client error: {source}")]
+    JobClientError {
+        #[from]
+        source: hero_job_client::ClientError,
+    },
+    
     #[error("Job '{job_id}' not found")]
     JobNotFound { job_id: String },