chores, add prompt for project management.

docs/prompt.project.manager.md

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+Here is the English translation:
+
+---
+
+**PROMPT TO INSERT INTO THE AI:**
+
+*"Act as a Tech Lead and Project Manager expert in Lean Startup and Micro-SaaS methodologies. I have provided you with the Product Requirements Document (PRD) for the 'LogWhisperer AI' project.
+Our goal is to launch this MVP to market in just 4 days ('fail fast, fail cheap' approach) using No-Code/Low-Code logic wherever possible to save time.
+Your task is to analyze the PRD and generate a development strategy ('Spec-driven development') structured as follows:*
+
+- *Divide the development into 2 agile Sprints of a maximum of 48 hours each.*
+- *Clearly identify what to delegate to n8n/Supabase (No-Code) and what requires custom code (e.g., the bash script).*
+- *Eliminate or flag any 'vanity features' that are not strictly necessary to test the market hypothesis and measure the Activation Rate.*
+- *Apply the 'Safety first, little often, double check' framework (Sacchi Method) in the architecture definition to ensure stability from day 1.*
+- *Provide me with the operational To-Do list for the first Sprint."*