refactor: address high-priority debt and publish to PyPI

- Fix TOCTOU race conditions by wrapping read-modify-write cycles
  under single-file locks in execution_state, portfolio_service,
  precheck_state, state_manager, and precheck_service.
- Add missing test coverage (96 tests total):
  - test_review_service.py (15 tests)
  - test_check_api.py (6 tests)
  - test_external_gate.py main branches (+10 tests)
  - test_trade_execution.py new commands (+8 tests)
- Unify all agent-consumed JSON messages to English.
- Config-ize hardcoded values (volume filter, schema_version) via
  get_user_config with sensible defaults.
- Add 1-hour TTL to exchange cache with force_new override.
- Add ruff and mypy to dev dependencies; fix all type errors.
- Add __all__ declarations to 11 service modules.
- Sync README with new commands, config tuning docs, and PyPI badge.
- Publish package as coinhunter==1.0.0 on PyPI with MIT license.
- Deprecate coinhunter-cli==1.0.1 with runtime warning.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pyproject.toml

@@ -3,10 +3,11 @@ requires = ["setuptools>=68", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [project]
-name = "coinhunter-cli"
-version = "0.1.0"
+name = "coinhunter"
+version = "1.0.0"
 description = "CoinHunter trading CLI with user runtime data in ~/.coinhunter"
 readme = "README.md"
+license = {text = "MIT"}
 requires-python = ">=3.10"
 dependencies = [
   "ccxt>=4.4.0"
@@ -15,6 +16,9 @@ authors = [
   {name = "Tacit Lab", email = "ouyangcarlos@gmail.com"}
 ]
 
+[project.optional-dependencies]
+dev = ["pytest>=8.0", "ruff>=0.4.0", "mypy>=1.0"]
+
 [project.scripts]
 coinhunter = "coinhunter.cli:main"
 
@@ -23,3 +27,17 @@ package-dir = {"" = "src"}
 
 [tool.setuptools.packages.find]
 where = ["src"]
+
+[tool.ruff]
+line-length = 120
+target-version = "py310"
+
+[tool.ruff.lint]
+select = ["E", "F", "W", "I"]
+ignore = ["E501"]
+
+[tool.mypy]
+python_version = "3.10"
+warn_return_any = true
+warn_unused_configs = true
+ignore_missing_imports = true