docs: update remaining docs for 12 LLM platforms

Update platform counts (4→12) in:
- docs/reference/CLAUDE_INTEGRATION.md (EN + zh-CN)
- docs/guides/MCP_SETUP.md, UPLOAD_GUIDE.md, MIGRATION_GUIDE.md
- docs/strategy/INTEGRATION_STRATEGY.md, DEEPWIKI_ANALYSIS.md, KIMI_ANALYSIS_COMPARISON.md
- docs/archive/historical/HTTPX_SKILL_GRADING.md

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/strategy/DEEPWIKI_ANALYSIS.md

@@ -78,7 +78,7 @@ Step 3: Success
 | Code analysis | ✅ File tree | ✅ AST + Patterns + Examples | 90% |
 | Issues/PRs | ❌ Not using | ✅ Top problems/solutions | 100% |
 | AI enhancement | ❌ Not using | ✅ Dual mode (API/LOCAL) | 100% |
-| Multi-platform | ❌ Claude only | ✅ 4 platforms | 75% |
+| Multi-platform | ❌ Claude only | ✅ 12 platforms | 75% |
 | Router skills | ❌ Not using | ✅ Solves context limits | 100% |
 | Rate limit mgmt | ❌ Not aware | ✅ Multi-token system | 100% |
 
@@ -167,7 +167,7 @@ skill-seekers config --github
 
 **They Only Know:** Claude AI
 
-**We Support:** 4 platforms
+**We Support:** 12 platforms
 - Claude AI (ZIP + YAML)
 - Google Gemini (tar.gz)
 - OpenAI ChatGPT (ZIP + Vector Store)

docs/strategy/INTEGRATION_STRATEGY.md

@@ -33,7 +33,7 @@ We can replicate this positioning with dozens of other tools/platforms to create
 | **MCP integration** | ✅ Aware | ✅ 26 tools available | **Medium** |
 | **Context limits** | ⚠️ Problem | ✅ Router skills solve | **Large** |
 | **AI enhancement** | ❌ Not mentioned | ✅ Dual mode (API/LOCAL) | **Large** |
-| **Multi-platform** | ❌ Claude only | ✅ 4 platforms | **Medium** |
+| **Multi-platform** | ❌ Claude only | ✅ 12 platforms | **Medium** |
 | **Rate limits** | ❌ Not mentioned | ✅ Smart management | **Medium** |
 | **Quality** | Basic | Production-ready | **Large** |
 

docs/strategy/KIMI_ANALYSIS_COMPARISON.md

@@ -98,7 +98,7 @@ CodeSee, Sourcery, Stepsize, Swimm - medium priority
 
 ### 1. **New Output Formats** (HIGH PRIORITY)
 
-**Current:** `--target claude|gemini|openai|markdown`
+**Current:** `--target claude|gemini|openai|minimax|opencode|kimi|deepseek|qwen|openrouter|together|fireworks|markdown`
 
 **Add:**
 ```bash