BL-025 - the last tint of the second brand blue, and the grep that missed it

help.js's search-focus ring was rgba(37,99,214,.15) - the banned #2563d6 as a
space-free rgb triple, which slid past color_check's spaced grep ('37, 99,
214') from the day BL-008 removed the colour. C4's recorded exception
legitimately allows rgba ALPHAS as opacity recipes; the defect was the base
colour under the alpha. Rebased onto THE blue: rgba(15,98,254,.15).

color_check compares space-free and case-insensitive now, in both the theme
check and the consumer sweep, so no spelling of the dead blue can return.

Items: BL-025 (closed), C4, BL-008 lineage.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

html/help.js

@@ -139,7 +139,7 @@
   .ui-help-search{ flex:1; position:relative; max-width:420px; }
   .ui-help-search input{ width:100%; padding:8px 12px; border:1px solid var(--cds-border-strong); border-radius:0;
     font-size:13px; outline:none; background:var(--cds-layer-accent); }
-  .ui-help-search input:focus{ border-color:var(--cds-focus); background:var(--cds-layer); box-shadow:0 0 0 2px rgba(37,99,214,.15); }
+  .ui-help-search input:focus{ border-color:var(--cds-focus); background:var(--cds-layer); box-shadow:0 0 0 2px rgba(15,98,254,.15); }
   .ui-help-head .ui-help-x{ margin-left:auto; background:none; border:none; font-size:20px; cursor:pointer; color:var(--cds-text-secondary); line-height:1; }
   .ui-help-wrap{ display:flex; flex:1; min-height:0; }
   .ui-help-nav{ width:230px; flex:none; border-right:1px solid var(--cds-border-subtle); overflow:auto; padding:10px 8px; background:var(--cds-layer-accent); }