Cleanup: remove orphaned CodebaseStatsSection.vue and ProblemsReportSection.vue (#1469 follow-up)

[mrveiss]

Problem

Two analytics components exist but are not imported or used anywhere in the codebase:

1. autobot-frontend/src/components/analytics/CodebaseStatsSection.vue (93 lines) — was intended to replace the inline stats section but was never wired
2. autobot-frontend/src/components/analytics/ProblemsReportSection.vue (358 lines) — was superseded by the new panels/CodebaseProblemsPanel.vue (510 lines) created in PR refactor(frontend): decompose CodebaseAnalytics.vue (#1469) #2225

Discovered During

Implementation of #1469 (PR #2225)

Expected Outcome

• Remove CodebaseStatsSection.vue (dead code), OR wire it into the parent replacing the inline stats grid
• Remove ProblemsReportSection.vue (superseded by CodebaseProblemsPanel.vue)

Impact

Low — dead code that adds confusion when navigating the analytics directory. No runtime impact.

[mrveiss]

Update from PR #2236 (#1579):

• ProblemsReportSection.vue is now wired up — it was integrated into CodebaseAnalytics.vue as part of Refactor: continue decomposing CodebaseAnalytics.vue — still 8,841 lines after PR #1576 #1579. The component was updated with export emit support and broadened Problem interface. It is no longer dead code.
• CodebaseProblemsPanel.vue (panels/) no longer exists in the codebase.
• CodebaseStatsSection.vue remains dead code — stats are handled by CodebaseChartsSection.vue instead. This file should still be removed.

Suggest updating this issue to only track CodebaseStatsSection.vue removal.

[mrveiss]

CodebaseStatsSection.vue already removed during PR #2236 merge. No further action needed.