feat: add /art proxy endpoint and fix /current to expose rgb+art_url

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

luz-musica.py

@@ -86,6 +86,18 @@ class ControlState:
                 "running": True,
             }
 
+    def set_current(self, art_url: str, rgb: tuple[int, int, int]) -> None:
+        with self._lock:
+            self._art_url = art_url
+            self._rgb = rgb
+
+    def current(self) -> dict[str, object]:
+        with self._lock:
+            return {
+                "art_url": getattr(self, "_art_url", None),
+                "rgb": list(getattr(self, "_rgb", [0, 200, 255])),
+            }
+
 
 CONTROL_STATE = ControlState()
 
@@ -98,6 +110,27 @@ class ControlHandler(BaseHTTPRequestHandler):
         if self.path == "/status":
             self.write_json(200, CONTROL_STATE.snapshot())
             return
+        if self.path == "/current":
+            self.write_json(200, CONTROL_STATE.current())
+            return
+        if self.path.startswith("/art"):
+            art_url = CONTROL_STATE.current().get("art_url")
+            if not art_url:
+                self.write_json(404, {"error": "no art"})
+                return
+            try:
+                resp = requests.get(art_url, timeout=5)
+                body = resp.content
+                ctype = resp.headers.get("Content-Type", "image/jpeg")
+                self.send_response(200)
+                self.send_header("Content-Type", ctype)
+                self.send_header("Content-Length", str(len(body)))
+                self.send_header("Access-Control-Allow-Origin", "*")
+                self.end_headers()
+                self.wfile.write(body)
+            except Exception:
+                self.write_json(502, {"error": "fetch failed"})
+            return
         self.write_json(404, {"error": "not found"})
 
     def do_POST(self) -> None:
@@ -537,6 +570,7 @@ def main() -> None:
                 print(f"Cor base: {raw_rgb} -> paleta: {palette_rgb}")
                 print(f"Aplicando cor: {rgb}")
                 set_light_color(rgb)
+                CONTROL_STATE.set_current(art_url, rgb)
                 last_track = track_id
                 last_rgb = rgb