docs: bootstrap agentrun references

TEST.md

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+# AgentRun Manual Test Plan
+
+These tests are placeholders until the CLI and services exist. They define how future manual validation should be written.
+
+## T1 Minimal Run Lifecycle
+
+Read `AGENTS.md`, then use the AgentRun CLI to manually test creating a run, starting a runner for that run, polling events, and observing terminal status. Verify every CLI command returns JSON, includes ids and follow-up commands, and never waits for a full model turn in one request.
+
+## T2 Command And Event Polling
+
+Read `AGENTS.md`, then create a run command and poll command status plus run events. Verify command state is visible, event pagination uses `afterSeq`, and repeated polling does not duplicate events.
+
+## T3 Logs And Failure Visibility
+
+Read `AGENTS.md`, then start the local service or runner with an intentionally invalid backend profile. Verify the CLI returns a structured failure, the log path is printed, and the log file contains enough detail to diagnose the failure.