feat: onboarding 2-keys + Windows install w/o admin (v0.7.3)

Two user-reported pain points:

1. First-run setup proposed only MiniMax (no MiMo step). Onboarding
   now offers both keys side-by-side under a single "apikey" step,
   with per-key Validate buttons. At least one must be valid to
   proceed; the rest of the providers (OpenAI/Anthropic/Z.AI/Ollama)
   are not shown in the wizard — they're configured later via the
   Config tab. Active provider = MiniMax if valid, else MiMo.

2. Windows install instructions failed: Move-Item to C:\Windows
   requires admin. Replaced with a no-admin 4-line snippet that
   installs to %LOCALAPPDATA%\Muyue and calls a new subcommand
   `muyue install-shortcuts` to create Desktop + Start Menu .lnk
   files and add the install dir to the user PATH. Shortcut creation
   uses WScript.Shell COM via PowerShell — keeps Go binary
   dependency-free. Folder paths resolved through
   [Environment]::GetFolderPath so OneDrive/redirected profiles
   work too.

- cmd/muyue/commands/install_shortcuts.go: new file
- web/src/components/OnboardingWizard.jsx: 2-key apikey step
- .gitea/workflows/ci-main.yml: updated install snippet
- internal/version/version.go: 0.7.2 → 0.7.3
- CHANGELOG.md: v0.7.3 entry

web/src/components/OnboardingWizard.jsx

@@ -23,8 +23,12 @@ export default function OnboardingWizard({ api, onComplete }) {
     language: 'fr',
     keyboard: 'azerty',
     apikey: '',
+    apikey_mimo: '',
     editor: '',
   })
+  const [keyValidMimo, setKeyValidMimo] = useState(false)
+  const [errorMimo, setErrorMimo] = useState(null)
+  const [validatingMimo, setValidatingMimo] = useState(false)
   const [editorList, setEditorList] = useState(BASE_EDITORS)
   const [saving, setSaving] = useState(false)
   const [error, setError] = useState(null)
@@ -52,7 +56,7 @@ export default function OnboardingWizard({ api, onComplete }) {
       case 'name': return answers.name.trim().length > 0
       case 'language': return !!answers.language
       case 'keyboard': return !!answers.keyboard
-      case 'apikey': return keyValid && !scanning
+      case 'apikey': return (keyValid || keyValidMimo) && !scanning
       case 'editor': return true
       case 'done': return true
       default: return true
@@ -173,6 +177,33 @@ export default function OnboardingWizard({ api, onComplete }) {
     setValidating(false)
   }
 
+  const handleValidateKeyMimo = async () => {
+    if (!answers.apikey_mimo.trim()) return
+    setValidatingMimo(true)
+    setErrorMimo(null)
+    try {
+      await api.validateProvider({
+        name: 'mimo',
+        api_key: answers.apikey_mimo,
+        model: 'mimo-v2.5-pro',
+        base_url: 'https://token-plan-ams.xiaomimimo.com/v1',
+      })
+      setKeyValidMimo(true)
+      // Save MiMo. If MiniMax wasn't validated yet, MiMo becomes the active provider.
+      await api.saveProvider({
+        name: 'mimo',
+        api_key: answers.apikey_mimo,
+        model: 'mimo-v2.5-pro',
+        base_url: 'https://token-plan-ams.xiaomimimo.com/v1',
+        active: !keyValid,
+      })
+    } catch (err) {
+      setErrorMimo(err.message || 'Clé invalide')
+      setKeyValidMimo(false)
+    }
+    setValidatingMimo(false)
+  }
+
 
 
   const handleSave = async () => {
@@ -201,6 +232,15 @@ export default function OnboardingWizard({ api, onComplete }) {
           active: true,
         })
       }
+      if (answers.apikey_mimo.trim()) {
+        await api.saveProvider({
+          name: 'mimo',
+          api_key: answers.apikey_mimo,
+          model: 'mimo-v2.5-pro',
+          base_url: 'https://token-plan-ams.xiaomimimo.com/v1',
+          active: !answers.apikey.trim(),
+        })
+      }
       onComplete()
     } catch (err) {
       setError(err.message || 'Erreur lors de la sauvegarde')
@@ -283,38 +323,71 @@ export default function OnboardingWizard({ api, onComplete }) {
 
           {current.key === 'apikey' && (
             <div className="onboarding-step">
-              <div className="onboarding-title">Clé API MiniMax</div>
+              <div className="onboarding-title">Clés API</div>
               <div className="onboarding-desc">
-                Entrez votre clé API MiniMax pour activer l'assistant IA. La clé est obligatoire pour continuer.
+                Renseignez au moins l'une des deux clés pour activer l'assistant. Les autres fournisseurs (OpenAI, Anthropic, Ollama, Z.AI) se configurent plus tard depuis l'onglet Configuration.
               </div>
-              <input
-                className="onboarding-input"
-                placeholder="sk-xxxxxxxxxxxxxxxx"
-                type="password"
-                value={answers.apikey}
-                onChange={e => { setAnswers(a => ({ ...a, apikey: e.target.value })); setKeyValid(false); setError(null) }}
-                autoFocus
-              />
-              {error && !keyValid && <div className="onboarding-required">{error}</div>}
-              {keyValid && !scanning && <div className="onboarding-valid">Clé valide ✓ — Appuyez sur Entrée pour continuer</div>}
+
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 6, marginTop: 4 }}>
+                <label style={{ fontSize: 12, color: 'var(--text-tertiary)', fontWeight: 600 }}>MiniMax</label>
+                <input
+                  className="onboarding-input"
+                  placeholder="sk-xxxxxxxxxxxxxxxx (MiniMax)"
+                  type="password"
+                  value={answers.apikey}
+                  onChange={e => { setAnswers(a => ({ ...a, apikey: e.target.value })); setKeyValid(false); setError(null) }}
+                  autoFocus
+                />
+                <div style={{ display: 'flex', gap: 8, alignItems: 'center', flexWrap: 'wrap' }}>
+                  <button
+                    className="sm primary"
+                    onClick={handleValidateKey}
+                    disabled={validating || !answers.apikey.trim()}
+                  >
+                    {validating ? 'Validation...' : 'Valider MiniMax'}
+                  </button>
+                  {keyValid && <span className="onboarding-valid">✓ MiniMax OK</span>}
+                  {error && !keyValid && <span className="onboarding-required">{error}</span>}
+                </div>
+              </div>
+
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 6, marginTop: 12 }}>
+                <label style={{ fontSize: 12, color: 'var(--text-tertiary)', fontWeight: 600 }}>MiMo (Xiaomi)</label>
+                <input
+                  className="onboarding-input"
+                  placeholder="sk-xxxxxxxxxxxxxxxx (MiMo)"
+                  type="password"
+                  value={answers.apikey_mimo}
+                  onChange={e => { setAnswers(a => ({ ...a, apikey_mimo: e.target.value })); setKeyValidMimo(false); setErrorMimo(null) }}
+                />
+                <div style={{ display: 'flex', gap: 8, alignItems: 'center', flexWrap: 'wrap' }}>
+                  <button
+                    className="sm primary"
+                    onClick={handleValidateKeyMimo}
+                    disabled={validatingMimo || !answers.apikey_mimo.trim()}
+                  >
+                    {validatingMimo ? 'Validation...' : 'Valider MiMo'}
+                  </button>
+                  {keyValidMimo && <span className="onboarding-valid">✓ MiMo OK</span>}
+                  {errorMimo && !keyValidMimo && <span className="onboarding-required">{errorMimo}</span>}
+                </div>
+              </div>
+
               {scanning && (
-                <div className="onboarding-scanning">
+                <div className="onboarding-scanning" style={{ marginTop: 8 }}>
                   <Loader size={14} className="spin-icon" />
                   <span>{scanMessage}</span>
                 </div>
               )}
-              {requiredError && <div className="onboarding-required">Veuillez valider votre clé API pour continuer</div>}
-              <div style={{ display: 'flex', gap: 8, marginTop: 4 }}>
-                <button
-                  className="sm primary"
-                  onClick={handleValidateKey}
-                  disabled={validating || !answers.apikey.trim()}
-                >
-                  {validating ? 'Validation...' : 'Valider la clé'}
-                </button>
-              </div>
-              {!keyValid && !error && answers.apikey.trim() && (
-                <div className="onboarding-hint">Entrez votre clé puis cliquez "Valider la clé"</div>
+              {requiredError && (
+                <div className="onboarding-required" style={{ marginTop: 8 }}>
+                  Veuillez valider au moins une clé (MiniMax ou MiMo) pour continuer.
+                </div>
+              )}
+              {(keyValid || keyValidMimo) && !scanning && (
+                <div className="onboarding-valid" style={{ marginTop: 8 }}>
+                  Au moins une clé est valide — appuyez sur Suivant pour continuer.
+                </div>
               )}
             </div>
           )}