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/

CLAUDE.md

@@ -19,11 +19,8 @@ The actual trading CLI is an **external dependency**: the `coinhunter` package o
   - `review-template.md` — Hourly review report structure.
   - `scam-signals.md` — Red flags and classification guidance for meme-coin evaluation.
   - `auto-trading-guide.md` — Legacy-oriented guide for deploying `auto_trader.py` and Binance API setup.
-- `templates/` — Thin shim scripts meant to be copied to your platform's scripts directory (e.g. `~/.hermes/scripts/` or `~/.openclaw/scripts/`). Each shim invokes the installed `coinhunter` CLI:
-  - `coinhunter_precheck_shim.py` — Runs `coinhunter pre`.
-  - `coinhunter_external_gate_shim.py` — Runs `coinhunter gate`.
-  - `coinhunter_review_context_shim.py` — Runs `coinhunter review`.
-  - `rotate_external_gate_log_shim.py` — Runs `coinhunter rotate-log`.
+- `scripts/` — Thin shim scripts meant to be copied to your platform's scripts directory (e.g. `~/.hermes/scripts/` or `~/.openclaw/scripts/`). Currently contains:
+  - `coinhunter_shim.py` — Unified cross-platform shim that runs any `coinhunter` subcommand (`pre`, `gate`, `review`, `rotate-log`).
 
 There is no `pyproject.toml`, `Makefile`, or test suite in this repository.
 
@@ -32,7 +29,7 @@ There is no `pyproject.toml`, `Makefile`, or test suite in this repository.
 ### Skill vs runtime separation
 - **Skill code/docs** live in this repository.
 - **Private user state** lives under `~/.coinhunter/` (positions, balances, logs, reviews, cache, gate state). Never commit user data into this repo.
-- **Platform cron scripts** are copied from `templates/` to your runtime's scripts directory (e.g. `~/.hermes/scripts/` or `~/.openclaw/scripts/`) and invoke the installed `coinhunter` CLI.
+- **Platform cron scripts** are copied from `scripts/` to your runtime's scripts directory (e.g. `~/.hermes/scripts/` or `~/.openclaw/scripts/`) and invoke the installed `coinhunter` CLI.
 
 ### Low-cost trigger architecture
 The framework is designed to minimize LLM invocations:
@@ -73,21 +70,15 @@ When modifying or adding trading scripts, these safeguards from `SKILL.md` must
   coinhunter --version
   ```
 
-- **Validate a shim after editing:**
+- **Validate the shim after editing:**
   ```bash
-  python3 -m py_compile templates/coinhunter_precheck_shim.py
+  python3 -m py_compile scripts/coinhunter_shim.py
   ```
 
-- **Copy shims to your platform's scripts directory:**
+- **Copy the shim to your platform's scripts directory:**
   ```bash
-  # Unified shim (recommended)
-  cp templates/coinhunter_shim.py ~/.hermes/scripts/coinhunter_shim.py
-  # or: cp templates/coinhunter_shim.py ~/.openclaw/scripts/coinhunter_shim.py
-
-  # Legacy individual shims (Hermes backward compatibility)
-  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 scripts/coinhunter_shim.py ~/.hermes/scripts/coinhunter_shim.py
+  # or: cp scripts/coinhunter_shim.py ~/.openclaw/scripts/coinhunter_shim.py
   ```
 
 - **Inspect user state:**