Phase 8: AI-driven operating and reserve fund health scores

Add daily AI health score calculation (0-100) for both operating and
reserve funds. Scores include trajectory tracking, factor analysis,
recommendations, and data readiness checks. Dashboard displays
graphical RingProgress gauges with color-coded scores, trend
indicators, and expandable detail popovers.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/package-lock.json

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@@ -3432,6 +3452,23 @@
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       "license": "MIT"
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+      "engines": {
+        "node": ">=18.x"
+      },
+      "funding": {
+        "type": "ko-fi",
+        "url": "https://ko-fi.com/intcreator"
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@@ -5916,6 +5953,15 @@
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