fix(cd): restore gitea workflow yaml parsing

.gitea/workflows/cd.yaml

@@ -287,12 +287,8 @@ jobs:
               # 修法：sed 去除奈秒 (.NNN...) 和末尾縮寫 (空格+大寫字母)，GNU date 才能正確解析
               CREATED_CLEAN=$(echo "$CREATED_AT" | sed 's/\.[0-9]*//' | sed 's/ [A-Z][A-Z]*$//')
               CREATED_EPOCH=$(date -d "$CREATED_CLEAN" +%s 2>/dev/null || \
-                python3 -c "
-import sys, datetime, re
-ts = re.sub(r'\.\d+', '', sys.argv[1])
-ts = re.sub(r'\s+[A-Z]{2,4}$', '', ts.strip())
-print(int(datetime.datetime.strptime(ts, '%Y-%m-%d %H:%M:%S %z').timestamp()))
-" "$CREATED_AT" 2>/dev/null || echo 0)
+                python3 -c "import sys, datetime, re; ts = re.sub(r'\\.\d+', '', sys.argv[1]); ts = re.sub(r'\\s+[A-Z]{2,4}$', '', ts.strip()); print(int(datetime.datetime.strptime(ts, '%Y-%m-%d %H:%M:%S %z').timestamp()))" \
+                "$CREATED_AT" 2>/dev/null || echo 0)
               NOW_EPOCH=$(date +%s)
               if [ "$CREATED_EPOCH" -gt 0 ] && \
                  [ $((NOW_EPOCH - CREATED_EPOCH)) -gt "$STALE_SECONDS" ]; then