chore(ci): pass explicit issue number to agent-fix prompt

The prompt said "Fix this GitHub issue" without specifying which one,
relying on claude-code-action to inject context. Over long runs the
agent drifted to a different issue (#2175 instead of #1914). Now the
issue number and title are passed explicitly in the prompt.

Author: naqvitalha

.github/workflows/agent-fix.yml

@@ -80,7 +80,11 @@ jobs:
           prompt: |
             You are running on CI (GitHub Actions). There is no human to confirm with — act autonomously.
             Environment: macOS runner with Xcode and iOS simulator. No Android emulator.
-            Fix this GitHub issue. Read and follow .claude/skills/fix-github-issue/SKILL.md for the full workflow.
+
+            YOUR ASSIGNED ISSUE: #${{ github.event.issue.number }}
+            TITLE: ${{ github.event.issue.title }}
+
+            Fix ONLY this issue — do not fix other issues. Read and follow .claude/skills/fix-github-issue/SKILL.md for the full workflow.
             After fixing, read and follow .claude/skills/raise-pr/SKILL.md to raise a PR.
             CI notes: use default Metro port (8081).