Migrate report-ai-problem to use github-devops for issue operations

[minouris]

Summary

The report-ai-problem skill currently issues gh commands directly via Bash. Once the issue-handling operations are added to github-devops (see #43), this skill should delegate all GitHub operations to that skill.

Changes Required

SKILL.md

• Replace Bash in allowed-tools with invocation of the github-devops skill (or retain Bash only for non-GitHub operations such as running extract_chat_log.py)

compose-issue.md

• Replace direct gh issue list calls with delegation to github-devops search-issues for both the main issue check and the per-cause sub-issue checks

submit-issue.md

• Replace gh issue create with github-devops create-issue
• Replace gh issue comment with github-devops comment-issue
• Replace the two-step get-issue-id + gh api sub_issues sequence with github-devops get-issue-id followed by github-devops add-sub-issue

Acceptance Criteria

• report-ai-problem contains no direct gh issue commands
• All GitHub issue operations are delegated to github-devops
• The -F / database ID quirk is handled inside github-devops scripts, not in report-ai-problem flow files
• Skill behaviour is unchanged from the user's perspective

Depends On

#43