Fix section numbering consistency across modules

- Standardize all verification sections to '## 5. Verification'
- Update systems analysis sections to '## 6. Systems Analysis'
- Remove 'Part' prefix from Module 17 headers for consistency
- Module 16: 8.5 → 5, 8.6 → 6
- Module 17: Part 5 → 5, Part 6 → 6

All verification functions now consistently placed in Section 5
across all optimization modules (15-18).

modules/16_compression/compression.py

@@ -1332,7 +1332,7 @@ if __name__ == "__main__":
 
 # %% [markdown]
 """
-## 8.5 Verification - Proving Pruning Works
+## 5. Verification - Proving Pruning Works
 
 Before analyzing compression in production, let's verify that our pruning actually achieves sparsity using real measurements.
 """
@@ -1403,7 +1403,7 @@ if __name__ == "__main__":
 
 # %% [markdown]
 """
-## 8.6 Systems Analysis - Compression Techniques
+## 6. Systems Analysis - Compression Techniques
 
 Understanding the real-world effectiveness of different compression techniques through systematic measurement and comparison.
 

modules/17_memoization/memoization.py

@@ -1367,7 +1367,7 @@ if __name__ == "__main__":
 
 # %% [markdown]
 """
-## Part 5: Verification - Proving KV Cache Speedup
+## 5. Verification - Proving KV Cache Speedup
 
 Before analyzing KV cache performance, let's verify that caching actually provides the dramatic speedup we expect using real timing measurements.
 """
@@ -1463,7 +1463,7 @@ if __name__ == "__main__":
 
 # %% [markdown]
 """
-## Part 6: Systems Analysis - KV Cache Performance
+## 6. Systems Analysis - KV Cache Performance
 
 Now let's analyze the performance characteristics and trade-offs of KV caching.
 """