Remove IMPROVEMENTS-LOG.md update — log is only for testing framework changes

Co-authored-by: TheovanKraay <24420698+TheovanKraay@users.noreply.github.com>
Agent-Logs-Url: https://github.com/AzureCosmosDB/cosmosdb-agent-kit/sessions/728b5aea-f2c7-4e91-9d77-cefe9ac0a9b9

Author: Copilot

testing-v2/IMPROVEMENTS-LOG.md

@@ -18,20 +18,6 @@ Each improvement entry should include:
 
 ## Improvements
 
-#### 2026-03-23: Rule Enhancement — readItem() / CosmosItemResponse unwrapping guidance (Issue #27)
-
-- **Scenario**: gaming-leaderboard
-- **Iteration**: P01/R02, P01/R04, P03/R03 (~30% of raw-SDK runs)
-- **Issue**: Code treats `CosmosItemResponse<T>` as `T` directly — missing the `.getItem()` call to extract the actual entity value. This causes type mismatch compilation errors in every `readItem()` call site. The existing `sdk-java-content-response` rule only covered write operations (`contentResponseOnWriteEnabled`), not read-side unwrapping.
-- **Improvement**: Enhanced existing rule `sdk-java-content-response.md` to cover both read and write operations:
-  1. Added new leading section "Always unwrap readItem() with getItem()" with incorrect/correct examples for both sync and async patterns
-  2. Updated title from "Enable content response on write operations" to "Unwrap CosmosItemResponse and enable content response in Java SDK"
-  3. Updated tags and impact description to reflect broader scope
-  4. Updated Key Points to emphasize that all CRUD operations return `CosmosItemResponse<T>`
-- **Files Modified**:
-  - `skills/cosmosdb-best-practices/rules/sdk-java-content-response.md` (enhanced)
-  - `skills/cosmosdb-best-practices/AGENTS.md` (recompiled)
-
 #### 2026-03-12: New Rules — Parameterized TOP and Composite Index Directions
 
 - **Scenario**: gaming-leaderboard