Profil-Seite: Anzeigename, Passwort ändern, Persona (ersetzt USER.md)

- Neuer Menüpunkt 'Mein Profil' statt 'Logout'
- Profil-Page: Anzeigename, Persona (Freitext), Passwort ändern, Logout
- ProfileEndpoint: GET/PUT /api/profile, PUT /api/profile/password
- User-Persona im System-Prompt statt USER.md (Fallback: Anzeigename/Username)
- SystemPromptBuilder: dataDir-Parameter entfernt, userPersona-Parameter hinzugefügt
- DB-Migration: persona-Spalte in users-Tabelle

wwwroot/js/api.js

@@ -221,6 +221,40 @@ async function apiRemoveAgentSkill(agentId, slug) {
   return fetch(`/api/agents/${agentId}/skills/${slug}`, { method: 'DELETE' });
 }
 
+// ── Profile API ──
+
+async function apiGetProfile() {
+  const resp = await fetch('/api/profile');
+  if (!resp.ok) return null;
+  return resp.json();
+}
+
+async function apiUpdateProfile(data) {
+  const resp = await fetch('/api/profile', {
+    method: 'PUT',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(data)
+  });
+  if (!resp.ok) {
+    const err = await resp.json();
+    throw new Error(err.error || 'Fehler beim Speichern');
+  }
+  return resp.json();
+}
+
+async function apiChangePassword(currentPassword, newPassword) {
+  const resp = await fetch('/api/profile/password', {
+    method: 'PUT',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ currentPassword, newPassword })
+  });
+  if (!resp.ok) {
+    const err = await resp.json();
+    throw new Error(err.error || 'Fehler beim Ändern');
+  }
+  return resp.json();
+}
+
 async function apiBackupDb() {
   const resp = await fetch('/api/backup', { method: 'POST' });
   if (!resp.ok) throw new Error('Backup fehlgeschlagen');

wwwroot/js/pages/dashboard.js

@@ -8,11 +8,10 @@ registerPage('dashboard', {
       navigateTo('settings');
     });
 
-    // Logout-Link
-    document.getElementById('dashboardLogoutLink').addEventListener('click', async (e) => {
+    // Profil-Link
+    document.getElementById('dashboardProfileLink').addEventListener('click', (e) => {
       e.preventDefault();
-      await apiLogout();
-      navigateTo('login');
+      navigateTo('profile');
     });
 
     // Globaler Click-Handler zum Schließen aller Card-Menüs

wwwroot/js/pages/profile-page.js

@@ -0,0 +1,112 @@
+// ── Profile Page ──
+
+registerPage('profile', {
+  async init() {
+    var profile = await apiGetProfile();
+    if (!profile) return;
+
+    var usernameInput = document.getElementById('profileUsername');
+    var displayNameInput = document.getElementById('profileDisplayName');
+    var personaInput = document.getElementById('profilePersona');
+    var saveBtn = document.getElementById('profileSaveBtn');
+    var messageDiv = document.getElementById('profileMessage');
+
+    var currentPwInput = document.getElementById('profileCurrentPassword');
+    var newPwInput = document.getElementById('profileNewPassword');
+    var confirmPwInput = document.getElementById('profileConfirmPassword');
+    var passwordBtn = document.getElementById('profilePasswordBtn');
+    var passwordMessageDiv = document.getElementById('profilePasswordMessage');
+
+    var logoutBtn = document.getElementById('profileLogoutBtn');
+
+    // Felder befüllen
+    usernameInput.value = profile.username || '';
+    displayNameInput.value = profile.displayName || '';
+    personaInput.value = profile.persona || '';
+
+    // Profil speichern
+    saveBtn.addEventListener('click', async function() {
+      saveBtn.disabled = true;
+      saveBtn.textContent = 'Speichern...';
+      messageDiv.hidden = true;
+
+      try {
+        var updated = await apiUpdateProfile({
+          displayName: displayNameInput.value.trim(),
+          persona: personaInput.value.trim()
+        });
+
+        // currentUser aktualisieren
+        if (currentUser) {
+          currentUser.displayName = updated.displayName;
+        }
+
+        messageDiv.textContent = 'Profil gespeichert';
+        messageDiv.className = 'profile-message profile-message-success';
+        messageDiv.hidden = false;
+        setTimeout(function() { messageDiv.hidden = true; }, 3000);
+      } catch (err) {
+        messageDiv.textContent = err.message;
+        messageDiv.className = 'profile-message profile-message-error';
+        messageDiv.hidden = false;
+      } finally {
+        saveBtn.disabled = false;
+        saveBtn.textContent = 'Speichern';
+      }
+    });
+
+    // Passwort ändern
+    passwordBtn.addEventListener('click', async function() {
+      passwordMessageDiv.hidden = true;
+
+      var currentPw = currentPwInput.value;
+      var newPw = newPwInput.value;
+      var confirmPw = confirmPwInput.value;
+
+      if (!currentPw || !newPw) {
+        passwordMessageDiv.textContent = 'Alle Felder ausfüllen';
+        passwordMessageDiv.className = 'profile-message profile-message-error';
+        passwordMessageDiv.hidden = false;
+        return;
+      }
+
+      if (newPw !== confirmPw) {
+        passwordMessageDiv.textContent = 'Neue Passwörter stimmen nicht überein';
+        passwordMessageDiv.className = 'profile-message profile-message-error';
+        passwordMessageDiv.hidden = false;
+        return;
+      }
+
+      passwordBtn.disabled = true;
+      passwordBtn.textContent = 'Ändern...';
+
+      try {
+        await apiChangePassword(currentPw, newPw);
+
+        currentPwInput.value = '';
+        newPwInput.value = '';
+        confirmPwInput.value = '';
+
+        passwordMessageDiv.textContent = 'Passwort geändert';
+        passwordMessageDiv.className = 'profile-message profile-message-success';
+        passwordMessageDiv.hidden = false;
+        setTimeout(function() { passwordMessageDiv.hidden = true; }, 3000);
+      } catch (err) {
+        passwordMessageDiv.textContent = err.message;
+        passwordMessageDiv.className = 'profile-message profile-message-error';
+        passwordMessageDiv.hidden = false;
+      } finally {
+        passwordBtn.disabled = false;
+        passwordBtn.textContent = 'Passwort ändern';
+      }
+    });
+
+    // Logout
+    logoutBtn.addEventListener('click', async function() {
+      await apiLogout();
+      currentUser = null;
+      navigateTo('login');
+    });
+  },
+  destroy() {}
+});