Add streaming filesystem triage and German usage guide

tests/test_release_hygiene.py

@@ -44,6 +44,8 @@ class ReleaseHygieneTests(unittest.TestCase):
                 "RULES.txt",
                 "VALIDATION.txt",
                 "THREAT_INTELLIGENCE.txt",
+                "FILESYSTEM_COVERAGE.txt",
+                "scripts/analyze_filesystem_exports.py",
                 "LICENSE.txt",
                 "config/threat_intel.json",
                 "uv.lock",