Display used and reserved limits capacity

docs/implementation.md

@@ -168,3 +168,18 @@ Documentation only; no runtime tests were run.
   server-side review analytics remain integration work. Native mobile and
   VoiceOver/TalkBack checks remain release QA. Security scans were not requested.
 - Delivery: [PR #21](https://git.sendico.io/tech/sxchnge/pulls/21), pushed on `kyc-20`; not merged. Final browser review also preserved heading semantics when moving keyboard focus.
+
+## Limits usage display — task #22
+
+- Branch `limits-22`, stacked on `kyc-20` / PR #21 (merge #21 first).
+- Added explicit used/committed and reserved fields through DTO, mapper, service
+  and model. Remaining is independently supplied by the backend stand-in.
+- Daily/monthly cards show used, reserved, available, cap and upgrade amounts,
+  with a labeled theme-based occupied-capacity indicator and exhausted text.
+  Dummy fixtures contain nonzero activity; usage survives tier increases.
+- UX review: EN/RU labels explain pending holds, no color-only information,
+  320px/1.6-scale widget checks, actual browser visual verification, zero and
+  over-cap ratio handling. Existing KYC telemetry is sufficient; no usage amounts
+  are sent to analytics.
+- Validation passed: all 91 frontend tests, analyze app and sxchnge_kyc,
+  format check of all 9 affected Dart files, web build and diff checks.