feat: manual metrics editor + past-analyses inline viewer on daily status

- AnalysisSummaryCard gains an "Edit manually" affordance powered by
  the new ManualMetricsForm (add/remove categories, edit counts,
  recompute total + success rate).
- New PastAnalysesViewer renders a tab-style selector of saved CSV
  analyses with an inline AnalysisResultsView panel.
- Reorganizes the page so the manual-metrics path is reachable when no
  analysis_summary exists yet.
- Sync package-lock to the recharts ^2.15.4 already declared in package.json.

frontend/package-lock.json

@@ -13,7 +13,7 @@
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
         "react-router-dom": "^6.24.0",
-        "recharts": "^2.12.7"
+        "recharts": "^2.15.4"
       },
       "devDependencies": {
         "@babel/core": "^7.24.7",