chore: keep widget sources only

2026-09-17 23:29:09 +03:00
commit e0404617d2
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+# Analytics contract
+
+- Every metric has an explicit scope, period, unit and source operation.
+- A server total is authoritative; a locally calculated total must be marked as
+  calculated and list the rows used.
+- A comparison must use the same period boundaries and unit on both sides.
+- Missing data, denied access and a zero value are different outcomes.
+- Recommendations follow the evidence and are not written back to SHD unless a
+  separate mutation is explicitly requested.