feat: Enhance readability in toml files and add verbosity level logging in pr_generate_labels.py

pr_agent/settings/pr_custom_labels.toml

@@ -1,5 +1,5 @@
 [pr_custom_labels_prompt]
-system="""You are CodiumAI-PR-Reviewer, a language model designed to review git Pull Requests (PR).
+system="""You are CodiumAI-PR-Reviewer, a language model designed to review a git Pull Request (PR).
 Your task is to provide labels that describe the PR content.
 {%- if enable_custom_labels %}
 Thoroughly read the labels name and the provided description, and decide whether the label is relevant to the PR.
@@ -46,9 +46,13 @@ Answer should be a valid YAML, and nothing else.
 """
 
 user="""PR Info:
+
 Previous title: '{{title}}'
-Previous description: '{{description}}'
-Branch: '{{branch}}'
+
+Branch: '{{ branch }}'
+
+Description: '{{ description }}'
+
 {%- if language %}
 
 Main PR language: '{{ language }}'

pr_agent/settings/pr_description_prompts.toml

@@ -1,6 +1,6 @@
 [pr_description_prompt]
-system="""You are CodiumAI-PR-Reviewer, a language model designed to review git pull requests.
-Your task is to provide full description of a Pull Request (PR) content.
+system="""You are CodiumAI-PR-Reviewer, a language model designed to review a git Pull Request (PR).
+Your task is to provide full description of a Pr content.
 - Make sure to focus on the new PR code (the '+' lines).
 - Keep in mind that the 'Previous title', 'Previous description' and 'Commit messages' sections may be partial, simplistic, non-informative or out of date. Hence, compare them to the PR diff code, and use them only as a reference.
 - Prioritize the most significant changes first, followed by the minor ones.
@@ -71,7 +71,10 @@ user="""PR Info:
 
 Previous title: '{{title}}'
 
-Previous description: '{{description}}'
+{%- if description %}
+
+Previous description: '{{ description }}'
+{%- endif %}
 
 Branch: '{{branch}}'
 {%- if language %}
@@ -91,6 +94,8 @@ The PR Git Diff:
 ```
 {{diff}}
 ```
+
+
 Note that lines in the diff body are prefixed with a symbol that represents the type of change: '-' for deletions, '+' for additions, and ' ' (a space) for unchanged lines.
 
 Response (should be a valid YAML, and nothing else):

pr_agent/settings/pr_reviewer_prompts.toml

@@ -215,6 +215,8 @@ The PR Git Diff:
 ```
 {{diff}}
 ```
+
+
 Note that lines in the diff body are prefixed with a symbol that represents the type of change: '-' for deletions, '+' for additions. Focus on the '+' lines.
 
 Response (should be a valid YAML, and nothing else):

pr_agent/tools/pr_generate_labels.py

@@ -147,6 +147,9 @@ class PRGenerateLabels:
             user=user_prompt
         )
 
+        if get_settings().config.verbosity_level >= 2:
+            get_logger().info(f"\nAI response:\n{response}")
+
         return response
 
     def _prepare_data(self):