Rename to stealergram, add pyproject.toml, purge em-dashes

- Rename project to stealergram throughout
- Add pyproject.toml (replaces requirements.txt split, folds pytest.ini)
- Replace all em-dashes with hyphens across all source files

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

tests/conftest.py

@@ -7,7 +7,7 @@ os.environ.setdefault("API_HASH", "dummy_hash_for_tests")
 os.environ.setdefault("BOT_TOKEN", "0:dummy_bot_token")
 os.environ.setdefault("NOTIFY_CHAT_ID", "99999")
 
-# Web frontend test defaults — set once here so all web test files see the same values.
+# Web frontend test defaults - set once here so all web test files see the same values.
 os.environ.setdefault("WEB_SECRET_KEY", "test-secret-key-for-pytest")
 os.environ.setdefault("WEB_ADMIN_USER", "superadmin")
 os.environ.setdefault("WEB_ADMIN_PASS", "superpass")
@@ -17,8 +17,8 @@ import config
 import utils.scorer as scorer
 
 # Two test keywords:
-#   @testcorp\.com  — employee email domain (triggers CRITICAL)
-#   testcorp\.com   — plain domain match   (triggers LOW baseline)
+#   @testcorp\.com - employee email domain (triggers CRITICAL)
+#   testcorp\.com - plain domain match   (triggers LOW baseline)
 TEST_KEYWORDS = [r"@testcorp\.com", r"testcorp\.com"]
 
 
@@ -29,7 +29,7 @@ def patched_keywords(monkeypatch):
     scorer's module-level globals so scoring logic uses known test patterns.
 
     scorer.py now reads _config.TARGET_KEYWORDS at call time via `import config as _config`,
-    so patching config.TARGET_KEYWORDS is sufficient — no direct scorer patch needed.
+    so patching config.TARGET_KEYWORDS is sufficient - no direct scorer patch needed.
     """
     monkeypatch.setattr(config, "TARGET_KEYWORDS", TEST_KEYWORDS)
     monkeypatch.setattr(scorer, "EMPLOYEE_DOMAINS", scorer._build_employee_domains())