fix: shorten todo summary prompt for balance

related comment: https://github.com/qodo-ai/pr-agent/pull/1869#discussion_r2151443243

pr_agent/settings/pr_reviewer_prompts.toml

@@ -109,15 +109,7 @@ class Review(BaseModel):
 {%- endif %}
 {%- if require_todo_scan %}
     todo_sections: Union[List[TodoSection], str] = Field(description="A list of TODO comments found in the code. Return 'No' (as a string) if there are no TODO comments or the list would be empty.")
-    todo_summary: str = Field(description="Summarize the functional areas of the TODO comments found in the code.
-      - Focus on describing the *functional areas* of the TODOs, such as:
-          testing, error handling, validation, documentation, performance,
-          security, logging, refactoring, API design, UI/UX
-
-      - Example:
-          TODO related to input validation and error handling
-
-      - Return 'No' (as a string) if there are no TODO comments.")
+    todo_summary: str = Field(description="Up to 6 words summarizing the functional areas of the TODO comments found in the code.")
 {%- endif %}
 {%- if require_can_be_split_review %}
     can_be_split: List[SubPR] = Field(min_items=0, max_items=3, description="Can this PR, which contains {{ num_pr_files }} changed files in total, be divided into smaller sub-PRs with distinct tasks that can be reviewed and merged independently, regardless of the order ? Make sure that the sub-PRs are indeed independent, with no code dependencies between them, and that each sub-PR represent a meaningful independent task. Output an empty list if the PR code does not need to be split.")
@@ -168,7 +160,7 @@ review:
   todo_sections: |
     No
   todo_summary: |
-    No
+    ...
 {%- if require_can_be_split_review %}
   can_be_split:
   - relevant_files:
@@ -290,7 +282,7 @@ review:
   todo_sections: |
     No
   todo_summary: |
-    No
+    ...
 {%- if require_can_be_split_review %}
   can_be_split:
   - relevant_files: