added .ssh

pi/.pi/agent/prompts/p-explain.md

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+Explain the selected code as if to a smart colleague new to the codebase.
+Include: what it does, why, edge cases, and a 1-paragraph summary.

pi/.pi/agent/prompts/p-plan.md

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+Break the following request into a numbered plan with concrete file paths and
+acceptance criteria. Do not implement until I approve.

pi/.pi/agent/prompts/p-review.md

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+Review the current diff (`git diff`) as a senior engineer. Focus on:
+correctness, security, error handling, naming, and missing tests. Output a
+bullet list of issues with file:line references. Don't fix them — just list.