fix(ui): replace Manual RPC text input with sorted method dropdown (#14967)

Merged via squash.

Prepared head SHA: 1bb49b2e64
Co-authored-by: rixau <112558420+rixau@users.noreply.github.com>
Co-authored-by: BunsDev <68980965+BunsDev@users.noreply.github.com>
Reviewed-by: @BunsDev

CHANGELOG.md

@@ -118,6 +118,7 @@ Docs: https://docs.openclaw.ai
 - MS Teams/authz: keep `groupPolicy: "allowlist"` enforcing sender allowlists even when a team/channel route allowlist is configured, so route matches no longer widen group access to every sender in that route. Thanks @zpbrent.
 - Security/system.run: bind approved `bun` and `deno run` script operands to on-disk file snapshots so post-approval script rewrites are denied before execution.
 - Skills/download installs: pin the validated per-skill tools root before writing downloaded archives, so rebinding the lexical tools path cannot redirect download writes outside the intended tools directory. Thanks @tdjackey.
+- Control UI/Debug: replace the Manual RPC free-text method field with a sorted dropdown sourced from gateway-advertised methods, and stack the form vertically for narrower layouts. (#14967) thanks @rixau.
 
 ## 2026.3.7
 

ui/src/ui/app-render.ts

@@ -1081,6 +1081,7 @@ export function renderApp(state: AppViewState) {
                 models: state.debugModels,
                 heartbeat: state.debugHeartbeat,
                 eventLog: state.eventLog,
+                methods: (state.hello?.features?.methods ?? []).toSorted(),
                 callMethod: state.debugCallMethod,
                 callParams: state.debugCallParams,
                 callResult: state.debugCallResult,

ui/src/ui/views/debug.ts

@@ -9,6 +9,7 @@ export type DebugProps = {
   models: unknown[];
   heartbeat: unknown;
   eventLog: EventLogEntry[];
+  methods: string[];
   callMethod: string;
   callParams: string;
   callResult: string | null;
@@ -71,14 +72,22 @@ export function renderDebug(props: DebugProps) {
       <div class="card">
         <div class="card-title">Manual RPC</div>
         <div class="card-sub">Send a raw gateway method with JSON params.</div>
-        <div class="form-grid" style="margin-top: 16px;">
+        <div class="stack" style="margin-top: 16px;">
           <label class="field">
             <span>Method</span>
-            <input
+            <select
               .value=${props.callMethod}
-              @input=${(e: Event) => props.onCallMethodChange((e.target as HTMLInputElement).value)}
-              placeholder="system-presence"
-            />
+              @change=${(e: Event) => props.onCallMethodChange((e.target as HTMLSelectElement).value)}
+            >
+              ${
+                !props.callMethod
+                  ? html`
+                      <option value="" disabled>Select a method…</option>
+                    `
+                  : nothing
+              }
+              ${props.methods.map((m) => html`<option value=${m}>${m}</option>`)}
+            </select>
           </label>
           <label class="field">
             <span>Params (JSON)</span>