Preserve implemented workspace plan while integrating plan history

docs/implementation.md

@@ -4,7 +4,7 @@
 
 [Task #10](https://git.sendico.io/tech/sxchnge/issues/10), branch `skills-10`,
 delivered in [PR #11](https://git.sendico.io/tech/sxchnge/pulls/11) into `main`,
-adds a concise root UX policy linking two independent skills in `skills/`:
+adds a concise root UX policy linking two independent skills, now consolidated under `.agents/skills/`:
 UX Design covers usable interfaces and its design review; UX Observability covers
 purposeful journey measurement and its observability review. Both preserve product
 conventions and avoid prescribing frameworks, vendors, or visual styles.
@@ -123,6 +123,16 @@ Implementation commit `f1cbf64`; 68 tests and affected-package analysis/formatti
 plus web build passed. Final browser verification confirms accessible recipient
 text and keyboard recovery. No merge or actual PostHog collection was performed.
 
+## Consolidated skill location
+
+Task [#16](https://git.sendico.io/tech/sxchnge/issues/16) consolidates all four
+repository skills under `.agents/skills/`. UX Design and UX Observability moved
+without content changes; root policy links and this record now use that location.
+The old root `skills/` directory is removed. Validation compares moved content
+byte-for-byte, checks all four skill paths and updated UX links, and runs
+`git diff --check`. No runtime tests are needed for this move.
+
+Delivery: [PR #17](https://git.sendico.io/tech/sxchnge/pulls/17), branch `skills-16`.
 ## Editor configuration cleanup
 
 Task [#14](https://git.sendico.io/tech/sxchnge/issues/14) removes the root VS Code
@@ -154,3 +164,117 @@ Documentation only; no runtime tests were run.
   implementation should incorporate KYC PR #21 and usage PR #23.
 - Validation: documentation links and diff checks; no runtime changes or tests.
 - Delivery: [PR #25](https://git.sendico.io/tech/sxchnge/pulls/25), committed and pushed; not merged.
+## Optional identity verification and backend-owned limits — task #20
+
+- Branch: `kyc-20`, based on `61ccfc1` (main after README PR #19).
+- Planned the UX before implementation in [docs/ux/kyc.md](ux/kyc.md), including
+  optional basic access, two-photo preparation/review, pending and decision states,
+  errors, recovery, privacy and measurement definitions.
+- Added the mobile-reusable `sxchnge_kyc` package, injectable identity/photo/limits
+  services, transport mappers and providers. Followed Sendico's visible-limits
+  ownership boundary; current tier/caps/remaining amounts come from a service.
+- Added themed EN/RU `/identity` screens, login/email-confirmation entry points,
+  route exit guards, review/replace/discard controls, safe error messages and
+  demo-only backoffice decision controls. No real documents are transmitted.
+- Reviewed full frontend scope and corrected web image-metadata validation,
+  stale-state messaging, cancelled-picker analytics, step focus/scroll behavior,
+  duplicate submissions and sensitive image cache cleanup.
+- Validation: format check for all 27 changed/new Dart files; analyzer passes for
+  app, sxchnge_kyc and sxchnge_analytics; `make test-frontend` passes **86 tests**
+  (10 KYC, 7 analytics, 20 auth, 3 theme, 3 consumer example, 43 app). Web build
+  passes. Actual browser selection of generated PNG samples reached pending
+  review with unchanged basic limits. EN/RU, 320px/1.6 text scale, accessibility
+  labels/tap targets, route guards and all decision paths have widget coverage.
+- Limits are illustrative backend-stub fixtures. Real authenticated uploads,
+  private storage, staff review, support, authoritative limits enforcement and
+  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.
+- Delivery: [PR #23](https://git.sendico.io/tech/sxchnge/pulls/23), unmerged. Merge #21 first and retarget #23 to main.
+
+## UX simplicity preference
+
+Task [#26](https://git.sendico.io/tech/sxchnge/issues/26), delivered in
+[PR #27](https://git.sendico.io/tech/sxchnge/pulls/27) on `skills-26`, makes
+simplicity an explicit preference in the UX Design skill and its review checklist.
+Prefer fewer concepts, choices, and controls when they serve the same need; retain
+essential information, accessibility, and recovery. Documentation only.
+Validation: skill-creator `quick_validate.py` passed in an isolated environment
+with PyYAML (the system Python lacked it); `git diff --check` passed. No runtime
+tests were needed. The PR is not merged.
+
+## Exchange workspace — task #28
+
+- Branch `workspace-28`, stacked on `limits-22` / PR #23. Merge KYC #21 first,
+  then limits #23, then retarget this workspace contribution to main. The approved
+  plan from #24/#25 is included and updated for the user's available-only direction.
+- Implemented Accounts, Activity/detail, Limits and Settings in a responsive
+  go_router shell, with top-up, exchange and payout input/review/status flows.
+  One action group follows the selected currency; all colors use theme roles.
+  Only available balances are displayed. Status explains credit timing, outgoing
+  amount plus fee, completion and full return after failure.
+- Shared `sxchnge_wallet` service/providers own coherent demo balances, quotes,
+  idempotent submissions, reconciliation, history, account language and live
+  snapshot refresh. The limits adapter reuses the KYC DTO/mapper and refreshes
+  usage when operations change. Widgets consume provider models.
+- Language is in account settings, with failed-save feedback and retry. Public
+  auth and verified-email screens enter the workspace. KYC remains optional;
+  the demo service enforces its basic/verified outgoing caps at submission.
+- UX review: EN/RU at 320px with 1.6 text scaling; available-only presentation;
+  field preservation after errors; explicit draft discard; quote expiry;
+  loading/stale/empty states; operation outcome explanations; accessible labels,
+  semantic status announcements and focus after quote/errors. Browser walkthrough
+  verifies quote amounts and service-confirmed credit with the exchange handoff.
+  Native mobile and dedicated VoiceOver/TalkBack testing remain release QA.
+- Measurement review: typed draft/quote/submission/settlement steps with scoped
+  journey IDs, safe failure enums, simulated flag and deduplicated terminal
+  outcomes. No financial amounts, recipients or account IDs in events. Pending
+  app closure is not draft abandonment. Real PostHog delivery and cross-session
+  server outcomes remain integration work.
+- Validation passed: `make test-frontend` (115 tests), `flutter analyze` in app,
+  sxchnge_wallet, sxchnge_analytics and sxchnge_kyc; format check of all 36 changed
+  Dart files; `flutter build web`; `git diff --check`. Review fixes included
+  narrow Russian layouts, limit-provider typing, automatic pending refresh,
+  single-use quotes and ambiguous-response recovery. No security scan requested.
+- Demo limits: opening EUR 75, fixed rates/fees and three currencies, no real
+  payment methods/bank validation/storage/auth enforcement. Account preferences,
+  history and balances reset on reload. No receipt export, date pagination,
+  notification preferences or security settings beyond an honest capability note.
+  Backend adapters must supply these before production use; see the wallet README.
+- Delivery: [PR #29](https://git.sendico.io/tech/sxchnge/pulls/29), pushed and
+  unmerged. Task and PR have frontend label, tech owner and SXCHNGE project.
+  Browser demo walkthrough also completed exchange and payout, confirming source
+  currency handoffs and exact fee/debit/receipt values on the result screen.
+
+### Workspace copy cleanup — follow-up to #28
+
+At the user's request, removed repeated demo/preview banners from the workspace,
+transaction forms, auth, email confirmation, identity and limits. Confirmation
+and result copy now uses ordinary product wording in EN/RU; the mobile wordmark
+remains without the extra note. Removed unused localization entries and duplicate
+email-state copy. Existing journey measurement, simulation flags, service behavior,
+funds explanations and recovery controls are unchanged. Development constraints
+belong in this record and package README, not repeated throughout the product UI.
+
+Delivery continues in [PR #29](https://git.sendico.io/tech/sxchnge/pulls/29) on
+`workspace-28`. This copy change does not connect real authentication, email,
+payment, support or backoffice services.
+Validation: all 115 frontend tests, app analysis, app Dart formatting, web build
+and diff checks pass. Updated existing copy expectations; telemetry tests still
+verify simulated events never count as real business success. No new click events
+were needed for this presentation-only cleanup.