100: Add Perps collateral, leverage, value, uPnL and gross-exposure totals in EMC

openspec/changes/hide-empty-perps-venues/verification.md

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+# Verification
+
+Verified locally on 24 October 2026. No commits, pushes or live Hub restart.
+
+- Normal `JAVA_HOME=/usr/local/software/java/jfx-25 ./gradlew build` passed:
+  42 existing tests, zero failures.
+- Strict OpenSpec validation passed for this change and `evelyn-perps-overview`;
+  the added requirement is synchronized into the main specification.
+- Reused the temporary standalone JavaFX preview outside application sources.
+  Checked both empty venues hidden with wallet retained; pending/failed hidden
+  scopes still unavailable in totals with wallet-level status; funded empty
+  Cross account keeping Phoenix visible; Jupiter appearing, disappearing and
+  returning; unrelated Phoenix item identity, selection and collapse retained;
+  a previously successful empty read still contributing zero after a failure.
+- Existing preview checks for eight columns, formatting and tree reconciliation
+  also passed. Screenshots are under `/tmp/issue100-check/hide-empty-venues/`;
+  the TEST and controlled-case views were visually inspected. The preview reused
+  prior read-only snapshots, with no new exchange reads or application sample data.
+- Updated `docs/Evelyn.md`, `docs/PhoenixPerps.md` and the canonical shared
+  `r35157_docs/projects/evelyn/README.md`, replacing obsolete claims about visible
+  empty groups and their error/loading indicators. Local links and diff checks passed.
+- The source change is confined to `PerpsTab.tjava`; snapshots, integrations,
+  totals and refresh timing are unchanged. Existing unrelated staged/deleted
+  OpenSpec artifacts were left untouched.