feat(hands): complete i18n fixes, SKILL.md enhancements, and README overhaul

- Fix French accent characters (é/è/ê/ç/â/ô) across all 14 HAND.toml files
- Fix German special characters (ä/ö/ü/ß) across all 14 HAND.toml files
- Add category translations to all 6 i18n language blocks in all 14 hands
- Enhance SKILL.md content for 9 hands with practical examples and workflows
- Trim bloated SKILL.md files (apitester 1400→892, devops 1301→870)
- Rewrite root README.md with accurate stats, complete hand/integration tables
- Update hands/README.md with full 14-hand listing and i18n documentation

hands/README.md

@@ -10,7 +10,7 @@ Hand definitions for LibreFang. Hands are the user-facing "apps" -- higher-level
 hands/
 ├── browser/
 │   ├── HAND.toml    # Hand definition
-│   └── SKILL.md     # Documentation
+│   └── SKILL.md     # Expert knowledge for the agent
 ├── trader/
 │   ├── HAND.toml
 │   └── SKILL.md
@@ -47,6 +47,17 @@ name = "hand-agent"
 module = "builtin:chat"
 system_prompt = """..."""
 
+# Optional: i18n for name, description, category, and settings
+# Supported languages: zh, ja, ko, es, fr, de
+[i18n.zh]
+name = "浏览器 Hand"
+description = "自主网页浏览器"
+category = "生产力"
+
+[i18n.zh.settings.headless]      # Per-setting label/description translation
+label = "无头模式"
+description = "在后台运行浏览器"
+
 [dashboard]                       # Dashboard metrics
 [[dashboard.metrics]]
 label = "Tasks Completed"
@@ -58,15 +69,24 @@ format = "number"
 
 | Hand | Category | Description |
 |------|----------|-------------|
-| browser | productivity | Autonomous web browser |
-| trader | data | Crypto/stock trading assistant |
-| researcher | productivity | Deep research automation |
-| analytics | data | Data analysis and dashboards |
-| ... | | See each directory for details |
+| analytics | data | Data analytics, visualization, dashboards, and automated reporting |
+| apitester | development | API testing, endpoint discovery, load testing, and regression detection |
+| browser | productivity | Web navigation, form filling, and multi-step web tasks |
+| clip | content | Turns long-form video into short clips with captions and thumbnails |
+| collector | data | Intelligence collection, change detection, and knowledge graphs |
+| devops | development | CI/CD management, infrastructure monitoring, and incident response |
+| lead | data | Lead generation, enrichment, scoring, and scheduled delivery |
+| linkedin | communication | LinkedIn content creation, networking, and engagement |
+| predictor | data | Signal collection, calibrated predictions, and accuracy tracking |
+| reddit | communication | Subreddit monitoring, content posting, and engagement tracking |
+| researcher | productivity | Deep research, cross-referencing, fact-checking, and reports |
+| strategist | productivity | Market research, competitive analysis, and strategic planning |
+| trader | data | Market intelligence, multi-signal analysis, and risk management |
+| twitter | communication | Twitter/X content creation, scheduling, and performance tracking |
 
 ## Adding a New Hand
 
-1. Create `hands/<name>/HAND.toml` (and optionally `SKILL.md`)
+1. Create `hands/<name>/HAND.toml` and `SKILL.md` (expert knowledge for the agent)
 2. Ensure `id` matches the directory name
 3. Run `python scripts/validate.py`
 4. Submit a PR