remove separate implementation of job api from coordinator

lib/clients/coordinator/src/models.rs

@@ -103,24 +103,8 @@ pub enum ScriptType {
 
 // ==================== Job ====================
 
-/// Parameters for creating a job
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct JobCreate {
-    pub id: u32,
-    pub caller_id: u32,
-    pub context_id: u32,
-    pub script: String,
-    pub script_type: ScriptType,
-    pub timeout: u64,
-    #[serde(default)]
-    pub retries: u8,
-    #[serde(default)]
-    pub env_vars: HashMap<String, String>,
-    #[serde(default)]
-    pub prerequisites: Vec<u32>,
-    #[serde(default)]
-    pub depends: Vec<u32>,
-}
+// JobCreate removed - coordinator only manages flows, not individual jobs
+// Use hero_job::Job from lib/models/job for job operations
 
 // ==================== Flow ====================