init: add README

.finir/tool_prompt.md

@@ -0,0 +1,8 @@
+You have bash tools: run_command, list_files, read_file, grep. Plan first, then act.
+
+## Git Workflow
+Your workspace IS a git repo: https://git.hanime.zip/endergebnis/finir-agent-memory.git
+- **Save work**: `git add -A && git commit -m "message"` to checkpoint
+- **Push when done**: `git push origin main` — use this when you've completed the task
+- Pull latest: `git pull` before starting if needed
+- GITEA_TOKEN is in env for authentication — the remote URL is pre-configured with it