feat(portainer-automation): add deploy controller with X-API-Key auth

portainer-automation/src/main/java/com/hithomelabs/portainer/controller/DeployController.java

@@ -0,0 +1,43 @@
+package com.hithomelabs.portainer.controller;
+
+import com.hithomelabs.portainer.config.PortainerAutomationProperties;
+import com.hithomelabs.portainer.service.DeployService;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/deploy")
+public class DeployController {
+
+    private final DeployService deployService;
+    private final String serviceApiKey;
+
+    public DeployController(DeployService deployService,
+                            PortainerAutomationProperties properties) {
+        this.deployService = deployService;
+        this.serviceApiKey = properties.getService().getApiKey();
+    }
+
+    @PostMapping("/{stackId}")
+    public ResponseEntity<String> deploy(@PathVariable Long stackId,
+                                         @RequestHeader("X-API-Key") String apiKey) {
+        if (serviceApiKey == null || !serviceApiKey.equals(apiKey)) {
+            return ResponseEntity.status(HttpStatus.UNAUTHORIZED)
+                    .body("Invalid or missing X-API-Key");
+        }
+
+        try {
+            deployService.deploy(stackId);
+            return ResponseEntity.ok("Stack " + stackId + " redeploy triggered");
+        } catch (Exception e) {
+            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR)
+                    .body("Redeploy failed: " + e.getMessage());
+        }
+    }
+}