chore(ci): establish PR governance for agent collaboration (#177)

* chore(ci): establish PR governance for agent collaboration

* docs: add AGENTS playbook and strengthen agent collaboration workflow

---------

Co-authored-by: chumyin <183474434+chumyin@users.noreply.github.com>

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,93 @@
+name: Bug Report
+description: Report a reproducible defect in ZeroClaw
+title: "[Bug]: "
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to report a bug.
+        Please provide a minimal reproducible case so maintainers can triage quickly.
+
+  - type: input
+    id: summary
+    attributes:
+      label: Summary
+      description: One-line description of the problem.
+      placeholder: zeroclaw daemon exits immediately when ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: current
+    attributes:
+      label: Current behavior
+      description: What is happening now?
+      placeholder: The process exits with ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+      description: What should happen instead?
+      placeholder: The daemon should stay alive and ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: reproduce
+    attributes:
+      label: Steps to reproduce
+      description: Please provide exact commands/config.
+      placeholder: |
+        1. zeroclaw onboard --interactive
+        2. zeroclaw daemon
+        3. Observe crash in logs
+      render: bash
+    validations:
+      required: true
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Logs / stack traces
+      description: Paste relevant logs (redact secrets).
+      render: text
+    validations:
+      required: false
+
+  - type: input
+    id: version
+    attributes:
+      label: ZeroClaw version
+      placeholder: v0.1.0 / commit SHA
+    validations:
+      required: true
+
+  - type: input
+    id: rust
+    attributes:
+      label: Rust version
+      placeholder: rustc 1.xx.x
+    validations:
+      required: true
+
+  - type: input
+    id: os
+    attributes:
+      label: Operating system
+      placeholder: Ubuntu 24.04 / macOS 15 / Windows 11
+    validations:
+      required: true
+
+  - type: dropdown
+    id: regression
+    attributes:
+      label: Regression?
+      options:
+        - Unknown
+        - Yes, it worked before
+        - No, first-time setup
+    validations:
+      required: true