feat: real-time live data integration

- lib/live-data.ts: Shared TypeScript client for blackroad-live-data Worker
- components/live-stats.tsx: LiveStatsBar, RecentRepos, AgentStatusGrid components
- app/page.tsx: Import LiveStatsBar in main page header

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -0,0 +1,30 @@
+name: Bug Report
+description: Report a bug or unexpected behavior
+labels: ["bug", "triage"]
+body:
+  - type: markdown
+    attributes:
+      value: Thanks for taking the time to report a bug!
+  - type: textarea
+    id: description
+    attributes:
+      label: What happened?
+      description: A clear description of the bug
+    validations:
+      required: true
+  - type: textarea
+    id: expected
+    attributes:
+      label: What did you expect?
+    validations:
+      required: true
+  - type: textarea
+    id: steps
+    attributes:
+      label: Steps to reproduce
+      placeholder: "1. Run `br ...`\n2. See error"
+  - type: input
+    id: version
+    attributes:
+      label: Version
+      placeholder: "e.g. 1.0.0"