chore(ci): fix agent-fix issue targeting and PR token usage (#2200)

* chore(ci): strengthen AGENT_PR_TOKEN usage in raise-pr skill

Add token verification step and fallback to prevent PRs being created
with the wrong token (default GITHUB_TOKEN shows as app/github-actions
and can't be merged). Adds post-creation author check.

* 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

.claude/skills/raise-pr/SKILL.md

@@ -125,9 +125,17 @@ GH_TOKEN="$AGENT_PR_TOKEN" gh pr create \
   --body-file /tmp/pr-body.md
 ```
 
-**MANDATORY:** The `GH_TOKEN="$AGENT_PR_TOKEN"` prefix is required. PRs created without it cannot be merged. On CI, `AGENT_PR_TOKEN` is set automatically from `SHOPIFY_GH_ACCESS_TOKEN`. Locally, ensure it is exported or pass your token directly.
+> **CRITICAL — TOKEN VERIFICATION (read this before running `gh pr create`)**
+>
+> 1. First, verify the token is available: `[ -n "$AGENT_PR_TOKEN" ] && echo "token ok" || echo "TOKEN MISSING"` — do NOT echo the token value itself.
+> 2. You **MUST** use `GH_TOKEN="$AGENT_PR_TOKEN" gh pr create ...` — never bare `gh pr create`.
+> 3. PRs created with the default `GITHUB_TOKEN` show as `app/github-actions` and **cannot be merged**.
+> 4. After creating the PR, verify the author: `gh pr view --json author --jq '.author.login'` — it must NOT be `app/github-actions`.
+>
+> If `AGENT_PR_TOKEN` is empty, try `SHOPIFY_GH_ACCESS_TOKEN` as fallback: `GH_TOKEN="${AGENT_PR_TOKEN:-$SHOPIFY_GH_ACCESS_TOKEN}" gh pr create ...`
 
 Before running `gh pr create`, double-check:
+- [ ] Token is verified (see above)
 - [ ] No mention of Claude, AI, Anthropic, or any AI tool anywhere
 - [ ] Description explains the "what" and "why" clearly
 - [ ] Test plan is specific to the change

.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).