chore: bump version to v0.50.58, update CHANGELOG

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Hermes Web UI -- Changelog
 
+## [v0.50.58] — 2026-04-16
+
+### Fixed
+- **Custom provider name in model dropdown** — when a `custom_providers` entry in `config.yaml` has a `name` field (e.g. `Agent37`), the model picker now shows that name as the group header instead of the generic `Custom` label. Multiple named providers each get their own group. Unnamed entries still fall back to `Custom`. Brings the web UI into parity with the terminal's provider display. (Fixes #557)
+
 ## [v0.50.57] — 2026-04-15
 
 ### Added

static/index.html

@@ -553,7 +553,7 @@
                 <div class="settings-section-title">System</div>
                 <div class="settings-section-meta">Instance version and access controls.</div>
               </div>
-              <span class="settings-version-badge">v0.50.57</span>
+              <span class="settings-version-badge">v0.50.58</span>
             </div>
             <div class="settings-field" style="border-top:1px solid var(--border);padding-top:12px;margin-top:8px">
               <label for="settingsPassword" data-i18n="settings_label_password">Access Password</label>