refactor: move shims from templates/ to scripts/ and drop legacy shims

- Remove 4 legacy shim files; only the unified coinhunter_shim.py remains
- Move the remaining shim from templates/ to scripts/ per skill best practices
- Update all docs (README, CLAUDE, shim-templates) to reference scripts/

README.md

@@ -103,27 +103,14 @@ Create your initial `positions.json`:
 
 ### 4. Deploy the shims
 
-**Option A — unified shim (recommended for new setups and cross-platform):**
-
-Copy the single unified shim into your platform's scripts directory. It accepts the subcommand as its first argument:
+Copy the unified shim into your platform's scripts directory. It accepts the subcommand as its first argument:
 
 ```bash
 # Hermes
-cp templates/coinhunter_shim.py ~/.hermes/scripts/coinhunter_shim.py
+cp scripts/coinhunter_shim.py ~/.hermes/scripts/coinhunter_shim.py
 
 # OpenClaw
-cp templates/coinhunter_shim.py ~/.openclaw/scripts/coinhunter_shim.py
-```
-
-**Option B — legacy shims (existing Hermes users, unchanged behavior):**
-
-The original individual shims are still provided for backward compatibility:
-
-```bash
-cp templates/coinhunter_precheck_shim.py ~/.hermes/scripts/coinhunter_precheck.py
-cp templates/coinhunter_external_gate_shim.py ~/.hermes/scripts/coinhunter_external_gate.py
-cp templates/coinhunter_review_context_shim.py ~/.hermes/scripts/coinhunter_review_context.py
-cp templates/rotate_external_gate_log_shim.py ~/.hermes/scripts/rotate_external_gate_log.py
+cp scripts/coinhunter_shim.py ~/.openclaw/scripts/coinhunter_shim.py
 ```
 
 ### 5. Configure the platform cron job
@@ -207,12 +194,8 @@ coinhunter/
 ├── README.md                     # You are here
 ├── SKILL.md                      # Full framework spec + gate blueprint
 ├── CLAUDE.md                     # Guidance for Claude Code
-├── templates/                    # Platform cron shims (call the installed coinhunter CLI)
-│   ├── coinhunter_shim.py        # Unified cross-platform shim (recommended)
-│   ├── coinhunter_precheck_shim.py
-│   ├── coinhunter_external_gate_shim.py
-│   ├── coinhunter_review_context_shim.py
-│   └── rotate_external_gate_log_shim.py
+├── scripts/                      # Platform cron shims (call the installed coinhunter CLI)
+│   └── coinhunter_shim.py        # Unified cross-platform shim
 └── references/
     ├── short-term-trading-framework.md
     ├── review-template.md