feat: reorganize examples and add signature support to JobBuilder

- Reorganized examples into osiris/, sal/, and utils/ folders
- Moved hardcoded scripts to separate .rhai files
- Added signature() method to JobBuilder for job signing
- Updated OSIRIS context to use block_in_place instead of runtime
- Removed runtime field from OsirisContext
- Added typed save() methods for Note and Event objects
- Updated all examples to use new structure and APIs

src/client.rs

@@ -346,4 +346,97 @@ impl Client {
 
         Ok(())
     }
+
+    /// Run a job: dispatch it, wait for completion, and return the result
+    /// 
+    /// This is a convenience method that:
+    /// 1. Stores the job in Redis
+    /// 2. Dispatches it to the runner's queue
+    /// 3. Waits for the job to complete (polls status)
+    /// 4. Returns the result or error
+    /// 
+    /// # Arguments
+    /// * `job` - The job to run
+    /// * `runner_name` - The name of the runner to dispatch to
+    /// * `timeout_secs` - Maximum time to wait for job completion (in seconds)
+    /// 
+    /// # Returns
+    /// * `Ok(String)` - The job result if successful
+    /// * `Err(JobError)` - If the job fails, times out, or encounters an error
+    pub async fn run_job(
+        &self,
+        job: &crate::job::Job,
+        runner_name: &str,
+        timeout_secs: u64,
+    ) -> Result<String, JobError> {
+        use tokio::time::{Duration, timeout};
+        
+        // Store the job in Redis
+        self.store_job_in_redis(job).await?;
+        
+        // Dispatch to runner queue
+        self.dispatch_job(&job.id, runner_name).await?;
+        
+        // Wait for job to complete with timeout
+        let result = timeout(
+            Duration::from_secs(timeout_secs),
+            self.wait_for_job_completion(&job.id)
+        ).await;
+        
+        match result {
+            Ok(Ok(job_result)) => Ok(job_result),
+            Ok(Err(e)) => Err(e),
+            Err(_) => Err(JobError::Timeout(format!(
+                "Job {} did not complete within {} seconds",
+                job.id, timeout_secs
+            ))),
+        }
+    }
+    
+    /// Wait for a job to complete by polling its status
+    /// 
+    /// This polls the job status every 500ms until it reaches a terminal state
+    /// (Finished or Error), then returns the result or error.
+    async fn wait_for_job_completion(&self, job_id: &str) -> Result<String, JobError> {
+        use tokio::time::{sleep, Duration};
+        
+        loop {
+            // Check job status
+            let status = self.get_status(job_id).await?;
+            
+            match status {
+                JobStatus::Finished => {
+                    // Job completed successfully, get the result
+                    let result = self.get_result(job_id).await?;
+                    return result.ok_or_else(|| {
+                        JobError::InvalidData(format!("Job {} finished but has no result", job_id))
+                    });
+                }
+                JobStatus::Error => {
+                    // Job failed, get the error message
+                    let mut conn = self.redis_client
+                        .get_multiplexed_async_connection()
+                        .await
+                        .map_err(|e| JobError::Redis(e))?;
+                    
+                    let error_msg: Option<String> = conn
+                        .hget(&self.job_key(job_id), "error")
+                        .await
+                        .map_err(|e| JobError::Redis(e))?;
+                    
+                    return Err(JobError::InvalidData(
+                        error_msg.unwrap_or_else(|| format!("Job {} failed with unknown error", job_id))
+                    ));
+                }
+                JobStatus::Stopping => {
+                    return Err(JobError::InvalidData(format!("Job {} was stopped", job_id)));
+                }
+                // Job is still running (Dispatched, WaitingForPrerequisites, Started)
+                _ => {
+                    // Wait before polling again
+                    sleep(Duration::from_millis(500)).await;
+                }
+            }
+        }
+    }
 }