Initial commit: skills library

- 70 skills with code and documentation
- Add .gitignore (ignore __pycache__, output/, temp/, venv/)
- Clean up test intermediates and caches

image-service/config/vision_config.json

@@ -0,0 +1,18 @@
+{
+  "vision_api": {
+    "key": "b0359bed-09f2-49e2-a53c-32ba057412e3",
+    "base_url": "https://ark.cn-beijing.volces.com/api/coding/v3",
+    "model": "doubao-seed-code"
+  },
+  "defaults": {
+    "image_to_text": {
+      "max_tokens": 2000,
+      "temperature": 0.7
+    }
+  },
+  "retry": {
+    "max_attempts": 3,
+    "backoff_multiplier": 2,
+    "initial_delay_seconds": 1
+  }
+}