feat(cron): blueprint start-from + delivery target picker in job editor (issue #780) (#822)

- New-job dialog gains a Start-from dropdown: pick a catalog blueprint, fill its typed slots (time/enum/weekdays/text), save instantiates it via POST /api/cron/blueprints/instantiate
- Delivery field is now an editable picker fed by GET /api/cron/delivery-targets (origin + local + connected platforms)
- Blueprints and targets fetched on editor open; 422 slot errors surface the backend detail

Co-authored-by: M57 <hy4ri@users.noreply.github.com>

app/src/main/java/com/m57/hermescontrol/data/model/CronBlueprint.kt

@@ -0,0 +1,58 @@
+package com.m57.hermescontrol.data.model
+
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.json.JsonElement
+import kotlinx.serialization.json.JsonPrimitive
+
+@Serializable
+data class CronBlueprintListResponse(
+    val blueprints: List<CronBlueprint> = emptyList(),
+)
+
+@Serializable
+data class CronBlueprint(
+    val key: String,
+    val title: String = "",
+    val description: String = "",
+    val category: String = "",
+    val tags: List<String> = emptyList(),
+    val fields: List<CronBlueprintField> = emptyList(),
+    val schedule: String = "",
+    val scheduleHuman: String = "",
+    val command: String = "",
+    val appUrl: String = "",
+)
+
+@Serializable
+data class CronBlueprintField(
+    val name: String,
+    val type: String = "text",
+    val label: String = "",
+    val default: JsonElement? = null,
+    val options: List<String> = emptyList(),
+    val optional: Boolean = false,
+    val strict: Boolean = true,
+    val help: String = "",
+) {
+    val defaultText: String
+        get() = (default as? JsonPrimitive)?.content.orEmpty()
+}
+
+@Serializable
+data class DeliveryTargetsResponse(
+    val targets: List<DeliveryTarget> = emptyList(),
+)
+
+@Serializable
+data class DeliveryTarget(
+    val id: String,
+    val name: String = "",
+    val home_target_set: Boolean = false,
+    val home_env_var: String? = null,
+)
+
+@Serializable
+data class InstantiateBlueprintRequest(
+    val blueprint: String,
+    val values: Map<String, String>,
+)

app/src/main/java/com/m57/hermescontrol/data/remote/HermesApiService.kt

@@ -19,10 +19,12 @@ import com.m57.hermescontrol.data.model.CreateProfileRequest
 import com.m57.hermescontrol.data.model.CreateTaskBody
 import com.m57.hermescontrol.data.model.CreateWebhookRequest
 import com.m57.hermescontrol.data.model.CredentialPoolResponse
+import com.m57.hermescontrol.data.model.CronBlueprintListResponse
 import com.m57.hermescontrol.data.model.CronJob
 import com.m57.hermescontrol.data.model.CuratorResponse
 import com.m57.hermescontrol.data.model.DebugShareResponse
 import com.m57.hermescontrol.data.model.DeleteWebhookResponse
+import com.m57.hermescontrol.data.model.DeliveryTargetsResponse
 import com.m57.hermescontrol.data.model.DoctorResponse
 import com.m57.hermescontrol.data.model.EnvVarConfig
 import com.m57.hermescontrol.data.model.EnvVarDeleteRequest
@@ -31,6 +33,7 @@ import com.m57.hermescontrol.data.model.EnvVarRevealResponse
 import com.m57.hermescontrol.data.model.EnvVarUpdate
 import com.m57.hermescontrol.data.model.HealthStatus
 import com.m57.hermescontrol.data.model.HookResponse
+import com.m57.hermescontrol.data.model.InstantiateBlueprintRequest
 import com.m57.hermescontrol.data.model.KanbanBoardResponse
 import com.m57.hermescontrol.data.model.KanbanBoardsResponse
 import com.m57.hermescontrol.data.model.LearningGraphResponse
@@ -308,6 +311,17 @@ interface HermesApiService {
         @Path("id") id: String,
     ): Response<Unit>
 
+    @GET("api/cron/blueprints")
+    suspend fun getCronBlueprints(): Response<CronBlueprintListResponse>
+
+    @POST("api/cron/blueprints/instantiate")
+    suspend fun instantiateBlueprint(
+        @Body body: InstantiateBlueprintRequest,
+    ): Response<CronJob>
+
+    @GET("api/cron/delivery-targets")
+    suspend fun getCronDeliveryTargets(): Response<DeliveryTargetsResponse>
+
     @POST("api/gateway/start")
     suspend fun startGateway(): Response<Unit>