fix: update whole code editing prompt to avoid lazy coding

src/templates/codegen-no-plan-prompt.hbs

@@ -144,6 +144,7 @@ FORMAT: Instructions for how to format your response.
   - You have thoroughly analyzed the task and planned your implementation strategy.
   - Everything specified in the task description and instructions is implemented.
   - All new or modified files contain the full code.
+  - When editing files, always provide the complete file content in your response, regardless of the extent of changes. DO NOT use placeholder comments like '//rest of code unchanged' or '//code remains the same'. You MUST include all parts of the file, even if they haven't been modified.
   - Regardless of the task complexity, all new or modified files must be 100% complete.
   - The content includes all necessary imports, function definitions, and exports.
   - The code is clean, maintainable, efficient, and considers performance implications.

src/templates/codegen-prompt.hbs

@@ -153,6 +153,7 @@ FORMAT: Instructions for how to format your response.
   - You have thoroughly analyzed the task and plan and have planned your implementation strategy.
   - Everything specified in the task description and plan is implemented.
   - All new or modified files contain the full code.
+  - When editing files, always provide the complete file content in your response, regardless of the extent of changes. DO NOT use placeholder comments like '//rest of code unchanged' or '//code remains the same'. You MUST include all parts of the file, even if they haven't been modified.
   - Regardless of the task complexity, all new or modified files must be 100% complete.
   - The content includes all necessary imports, function definitions, and exports.
   - The code is clean, maintainable, efficient, and considers performance implications.