refactor(server): make title prompts plaintext - #5368

💭 I'm checking the file to see if there are any issues with the prompt string refactoring, though this looks more like a straightforward change to plaintext templates rather than something involving Effect service conventions. There's a conflict between the instruction to respond with "All clear" and the requirement to return JSON matching the schema, but the schema is mandatory so I'll use "All clear" in the title and summary fields. Since no violations were found, I'll set the state to success with those minimal fields.