Ship the real club crests in the APK, and fix the CI licence step

Resolving crests from Wikipedia at runtime never produced a visible badge
on the TV and left nothing in the log to debug, so the shield fallback was
all anyone ever saw. They are now downloaded once at build time by
tools/fetch-crests.py into assets/crests (git-ignored, so no trademarked
artwork is committed) and loaded from there — instant, and independent of
the network.

CI: accepting SDK licences by piping "yes" into sdkmanager died of SIGPIPE
(exit 141) under pipefail; the licence hashes are written directly now.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tools/fetch-crests.py

@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+"""Downloads club crests into the APK's assets at build time.
+
+The badges are trademarks: they are fetched into a generated, git-ignored
+folder so the repository stays free of them while the app ships with them
+and needs no network at runtime.
+"""
+import json
+import os
+import re
+import sys
+import time
+import urllib.parse
+import urllib.request
+
+OUT = sys.argv[1] if len(sys.argv) > 1 else "app/src/main/assets/crests"
+SRC = "app/src/main/java/dev/castarr/tv/data/TeamFilters.kt"
+SUMMARY = "https://de.wikipedia.org/api/rest_v1/page/summary/"
+UA = {"User-Agent": "Castarr build script (private use)"}
+
+os.makedirs(OUT, exist_ok=True)
+kotlin = open(SRC, encoding="utf-8").read()
+entries = re.findall(r'club\((.*?)\)\s*,\s*(?://.*)?$', kotlin, re.M | re.S)
+clubs = []
+for raw in re.findall(r'club\(\s*"([^"]+)",\s*"[^"]*",\s*"([^"]+)"[^\n]*', kotlin):
+    clubs.append(raw)
+# an explicit article = "..." wins over the club name
+overrides = dict(re.findall(r'club\(\s*"([^"]+)"[^\n]*article = "([^"]+)"', kotlin))
+clubs = [(k, overrides.get(k, n)) for k, n in clubs]
+
+fetched = skipped = failed = 0
+for key, full_name in clubs:
+    target = os.path.join(OUT, f"{key}.png")
+    if os.path.exists(target) and os.path.getsize(target) > 0:
+        skipped += 1
+        continue
+    try:
+        url = SUMMARY + urllib.parse.quote(full_name)
+        with urllib.request.urlopen(urllib.request.Request(url, headers=UA), timeout=20) as r:
+            thumb = json.load(r).get("thumbnail", {}).get("source")
+        if not thumb:
+            raise ValueError("no thumbnail")
+        with urllib.request.urlopen(urllib.request.Request(thumb, headers=UA), timeout=20) as r:
+            data = r.read()
+        with open(target, "wb") as f:
+            f.write(data)
+        fetched += 1
+    except Exception as exc:  # noqa: BLE001 - best effort, shield is the fallback
+        print(f"  {key}: {exc}", file=sys.stderr)
+        failed += 1
+    # Wikipedia rate-limits bursts; this runs rarely and caches.
+    time.sleep(1.2)
+
+print(f"crests: {fetched} geladen, {skipped} vorhanden, {failed} fehlgeschlagen")