feat: complete Phase 1 - vocabulary expansion & DriftProbe infrastructure

- CLI: nyx-probe scan with --summary/--delta/--full flags
- DriftProbe: training safety with Gini coefficient + Angular Drift
- Vocabulary: 54 terms (30 nimmerverse + 24 German philosophical)
- Sentinels: ANCHOR/BRIDGE/CANARY/TARGET monitoring system

Key findings:
- German philosophical terms: 37.5% depth≥2 hit rate (vs 3.3% nimmerverse)
- Super Cluster validated: heart cross-lang sim = 1.000
- Isolated Zone confirmed: being EN↔DE sim = 0.195
- Gini signature: Philosophy ~0.5 (diffuse), Technical ~0.8 (sparse)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -7,6 +7,7 @@ __pycache__/
 venv/
 ENV/
 .venv/
+*.egg-info/
 
 # IDE
 .idea/
@@ -17,7 +18,7 @@ ENV/
 # Jupyter
 .ipynb_checkpoints/
 
-# Results (large files)
+# Results (large scan outputs)
 results/*.json
 results/*.csv
 *.pt
@@ -30,3 +31,5 @@ results/*.csv
 # OS
 .DS_Store
 Thumbs.db
+
+# Keep data/glossary tracked (master.json, collections)