feat: Import 35+ skills, merge duplicates, add openclaw installer

Major updates:
- Added 35+ new skills from awesome-opencode-skills and antigravity repos
- Merged SEO skills into seo-master
- Merged architecture skills into architecture
- Merged security skills into security-auditor and security-coder
- Merged testing skills into testing-master and testing-patterns
- Merged pentesting skills into pentesting
- Renamed website-creator to thai-frontend-dev
- Replaced skill-creator with github version
- Removed Chutes references (use MiniMax API instead)
- Added install-openclaw-skills.sh for cross-platform installation
- Updated .env.example with MiniMax API credentials

skills/minimax-multimodal-toolkit/references/image-api.md

@@ -0,0 +1,115 @@
+# MiniMax Image Generation API (image-01)
+
+Source: https://platform.minimaxi.com/docs/api-reference/image-generation-t2i and https://platform.minimaxi.com/docs/api-reference/image-generation-i2i
+
+## Endpoint
+
+`POST https://api.minimaxi.com/v1/image_generation`
+
+## Auth
+
+`Authorization: Bearer <MINIMAX_API_KEY>`
+
+## Request (JSON)
+
+Required:
+- `model`: string — `image-01`
+- `prompt`: string (max 1500 chars) — text description of the desired image
+
+Optional:
+- `aspect_ratio`: string — image aspect ratio, default `1:1`. Options:
+  - `1:1` (1024×1024)
+  - `16:9` (1280×720)
+  - `4:3` (1152×864)
+  - `3:2` (1248×832)
+  - `2:3` (832×1248)
+  - `3:4` (864×1152)
+  - `9:16` (720×1280)
+  - `21:9` (1344×576)
+- `width`: integer — custom width in pixels. Range [512, 2048], must be multiple of 8. Overridden by `aspect_ratio` if both set.
+- `height`: integer — custom height in pixels. Same rules as `width`. Both `width` and `height` must be set together.
+- `response_format`: string — `url` (default, valid 24h) or `base64`
+- `n`: integer (1–9, default 1) — number of images to generate
+- `seed`: integer — random seed for reproducibility
+- `prompt_optimizer`: boolean (default `false`) — enable automatic prompt optimization
+- `aigc_watermark`: boolean (default `false`) — add AIGC watermark
+
+### Subject Reference (image-to-image)
+
+- `subject_reference`: array — character reference for image-to-image generation
+  - `type`: string — currently only `character` (portrait)
+  - `image_file`: string — reference image as public URL or Base64 Data URL (`data:image/jpeg;base64,...`). For best results, use a single person front-facing photo. Formats: JPG, JPEG, PNG. Max size: 10MB.
+
+## Example — Text-to-Image
+
+```json
+{
+  "model": "image-01",
+  "prompt": "A man in a white t-shirt, full-body, standing front view, outdoors, with the Venice Beach sign in the background, Los Angeles. Fashion photography in 90s documentary style, film grain, photorealistic.",
+  "aspect_ratio": "16:9",
+  "response_format": "url",
+  "n": 3,
+  "prompt_optimizer": true
+}
+```
+
+## Example — Image-to-Image (Character Reference)
+
+```json
+{
+  "model": "image-01",
+  "prompt": "A girl looking into the distance from a library window",
+  "aspect_ratio": "16:9",
+  "subject_reference": [
+    {
+      "type": "character",
+      "image_file": "https://example.com/face.jpg"
+    }
+  ],
+  "n": 2
+}
+```
+
+## Response
+
+```json
+{
+  "id": "03ff3cd0820949eb8a410056b5f21d38",
+  "data": {
+    "image_urls": ["https://...", "https://...", "https://..."],
+    "image_base64": null
+  },
+  "metadata": {
+    "success_count": 3,
+    "failed_count": 0
+  },
+  "base_resp": {
+    "status_code": 0,
+    "status_msg": "success"
+  }
+}
+```
+
+- `data.image_urls`: array of image URLs (when `response_format` is `url`, valid 24h)
+- `data.image_base64`: array of Base64 strings (when `response_format` is `base64`)
+- `metadata.success_count`: number of successfully generated images
+- `metadata.failed_count`: number of images blocked by content safety
+
+## Status Codes
+
+| Code | Meaning |
+|------|---------|
+| 0 | Success |
+| 1002 | Rate limited, retry later |
+| 1004 | Auth failed, check API key |
+| 1008 | Insufficient balance |
+| 1026 | Prompt contains sensitive content |
+| 2013 | Invalid parameters |
+| 2049 | Invalid API key |
+
+## Notes
+
+- The API is synchronous — images are returned directly in the response (no polling needed).
+- URL format image links expire after 24 hours.
+- For image-to-image: upload a single front-facing portrait for best character reference results.
+- `width`/`height` are overridden by `aspect_ratio` if both provided.