docs: add .github/ISSUE_TEMPLATE/pinpoint.md codifying gaebal-gajae filing format

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: true
+contact_links:
+  - name: How to file a pinpoint
+    url: https://github.com/ultraworkers/claw-code/blob/main/CONTRIBUTING.md#filing-a-roadmap-pinpoint
+    about: Read the pinpoint format guide before filing

.github/ISSUE_TEMPLATE/pinpoint.md

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+---
+name: Pinpoint
+about: File a concrete clawability gap with code evidence
+title: '[Pinpoint #XXX] '
+labels: [pinpoint]
+---
+
+## Exact pinpoint
+
+<!-- One-line statement: what is wrong or missing, stated crisply. -->
+
+## Live evidence
+
+<!-- File:line refs, code paths, command output that reproduces the gap. -->
+
+```
+# paste evidence here
+```
+
+## Why distinct
+
+<!-- Why this isn't already covered by an adjacent pinpoint. Cluster context if relevant. -->
+
+## Concrete delta landed
+
+<!-- Commit sha + push status once fixed. Leave blank until resolved. -->
+
+- commit: 
+- push: local==origin==fork ✅ / ⏳ pending
+
+## Fix shape recorded
+
+<!-- Defensive fix sketch — what change would close this pinpoint. -->
+
+## Branch / parity
+
+<!-- Branch name, HEAD sha, three-way parity status. -->
+
+- branch: 
+- HEAD: 
+- parity: local==origin==fork ✅ / ⏳ pending