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/gif-sticker-maker/assets/video-prompt-template.txt

@@ -0,0 +1,14 @@
+Animate this cute 3D cartoon figurine performing: {action}
+
+Requirements:
+- Smooth loopable motion, keep action within 6 seconds
+- Character stays centered, white background remains static
+- Text at bottom must stay sharp and stable — no warping, no blur
+
+Action reference:
+- hi: wave hand cheerfully, slight head tilt
+- laugh: shake with laughter, eyes squint shut
+- cry: tears stream down, body trembles gently
+- love: make heart gesture with both hands, eyes sparkle
+
+CRITICAL: The caption text must remain perfectly readable throughout the entire animation. Zero text distortion.