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>

src/coinhunter/services/precheck_core.py

@@ -18,14 +18,19 @@ from __future__ import annotations
 
 from importlib import import_module
 
+from ..runtime import get_runtime_paths
+
+_PATH_ALIASES = {
+    "PATHS": lambda: get_runtime_paths(),
+    "BASE_DIR": lambda: get_runtime_paths().root,
+    "STATE_DIR": lambda: get_runtime_paths().state_dir,
+    "STATE_FILE": lambda: get_runtime_paths().precheck_state_file,
+    "POSITIONS_FILE": lambda: get_runtime_paths().positions_file,
+    "CONFIG_FILE": lambda: get_runtime_paths().config_file,
+    "ENV_FILE": lambda: get_runtime_paths().env_file,
+}
+
 _MODULE_MAP = {
-    "PATHS": ".precheck_constants",
-    "BASE_DIR": ".precheck_constants",
-    "STATE_DIR": ".precheck_constants",
-    "STATE_FILE": ".precheck_constants",
-    "POSITIONS_FILE": ".precheck_constants",
-    "CONFIG_FILE": ".precheck_constants",
-    "ENV_FILE": ".precheck_constants",
     "BASE_PRICE_MOVE_TRIGGER_PCT": ".precheck_constants",
     "BASE_PNL_TRIGGER_PCT": ".precheck_constants",
     "BASE_PORTFOLIO_MOVE_TRIGGER_PCT": ".precheck_constants",
@@ -74,10 +79,12 @@ _MODULE_MAP = {
     "analyze_trigger": ".trigger_analyzer",
 }
 
-__all__ = sorted(set(_MODULE_MAP) | {"main"})
+__all__ = sorted(set(_MODULE_MAP) | set(_PATH_ALIASES) | {"main"})
 
 
 def __getattr__(name: str):
+    if name in _PATH_ALIASES:
+        return _PATH_ALIASES[name]()
     if name not in _MODULE_MAP:
         raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
     module_name = _MODULE_MAP[name]
@@ -90,8 +97,9 @@ def __dir__():
 
 
 def main():
-    from .precheck_service import run as _run_service
     import sys
+
+    from .precheck_service import run as _run_service
     return _run_service(sys.argv[1:])