feat: Public-Flag für Agents + verfügbare Agents/Bots Endpoints erweitert

- AgentRecord: neues IsPublic-Feld mit DB-Migration
- GET /api/agents/available: eigene + public Agents (alle Properties + isOwner)
- GET /api/telegram/bots/available: alle Properties außer Token/Secret + sessionCount
- Agent-Page: Public-Checkbox (andere User können Agent in Sessions verwenden)
- Dashboard: agentMap aus availableAgents gebaut (public Agents fremder User auflösbar)
- Session-Page + Cronjob-Page: Agent-Picker nutzt /available statt /agents
- Agent-Cards: Public- und Fremd-Badges
- Fix: Chat-Button bei Sessions mit public Agent eines anderen Users nicht mehr disabled

wwwroot/index.html

@@ -247,6 +247,10 @@
             <button type="button" id="agentAddCommandBtn" class="add-cmd-btn">+ Befehl hinzufügen</button>
           </div>
         </div>
+        <label class="checkbox-label">
+          <input type="checkbox" id="agentIsPublic">
+          Public <span class="checkbox-hint">(andere User können diesen Agent in ihren Sessions verwenden)</span>
+        </label>
         <div class="form-actions">
           <button id="agentSaveBtn">Speichern</button>
           <button id="agentCancelBtn">Abbrechen</button>

wwwroot/js/api.js

@@ -68,6 +68,12 @@ async function apiGetAgents() {
   return resp.json();
 }
 
+async function apiGetAvailableAgents() {
+  const resp = await fetch('/api/agents/available');
+  if (!resp.ok) return [];
+  return resp.json();
+}
+
 async function apiGetAgent(agentId) {
   const resp = await fetch(`/api/agents/${agentId}`);
   if (!resp.ok) return null;

wwwroot/js/cards.js

@@ -113,6 +113,9 @@ function buildAgentCard(agent, skills) {
     badges.push(`<span class="badge badge-feature" title="Web-Suche - ${wsYear}"><i class="fa fa-search"></i> Web-Suche</span>`);
   }
 
+  if (agent.isPublic) badges.push('<span class="badge badge-feature" title="Public – für alle User verfügbar"><i class="fa fa-globe"></i> Public</span>');
+  if (agent.isOwner === false) badges.push('<span class="badge badge-other" title="Gehört einem anderen User"><i class="fa fa-user-o"></i> Fremd</span>');
+
   if (skills) {
     for (const skill of skills) {
       badges.push(`<span class="badge badge-skill" title="${esc(skill.description || skill.slug)}"><i class="fa fa-puzzle-piece"></i> ${esc(skill.name)}</span>`);

wwwroot/js/pages/agent-page.js

@@ -34,6 +34,7 @@ registerPage('agent', {
     const addCommandBtn = document.getElementById('agentAddCommandBtn');
     const skillsSection = document.getElementById('agentSkillsSection');
     const skillList = document.getElementById('agentSkillList');
+    const isPublicEl = document.getElementById('agentIsPublic');
     const more = document.querySelector('.more');
 
     // Avatar Editor initialisieren
@@ -66,6 +67,7 @@ registerPage('agent', {
       useUserInfoEl.checked = agent.useUserInfo !== false;
       useMemoryEl.checked = agent.useMemory !== false;
       webSearchVersionEl.value = agent.webSearchVersion || '';
+      isPublicEl.checked = agent.isPublic || false;
       deleteBtn.hidden = false;
 
       // Custom Commands laden
@@ -112,7 +114,8 @@ registerPage('agent', {
         avatarOffsetX: _agentAvatarEditor.getOffsetX(),
         avatarOffsetY: _agentAvatarEditor.getOffsetY(),
         customCommands: getCommandsFromUI(commandsList),
-        taskInstruction: _agentTaskMde ? _agentTaskMde.value().trim() || null : null
+        taskInstruction: _agentTaskMde ? _agentTaskMde.value().trim() || null : null,
+        isPublic: isPublicEl.checked
       };
 
       if (isNew) {

wwwroot/js/pages/cronjob-page.js

@@ -20,7 +20,7 @@ registerPage('cronjob', {
 
     // Sessions + Agents laden
     const sessions = await apiGetSessions();
-    const agents = await apiGetAgents();
+    const agents = await apiGetAvailableAgents();
     const agentMap = {};
     for (const a of agents) agentMap[a.agentId] = a;
     const sessionMap = {};

wwwroot/js/pages/dashboard.js

@@ -35,11 +35,11 @@ registerPage('dashboard', {
 
     // Telegram-Config parallel pro Session laden (sessions werden gleich geladen)
 
-    const [agents, sessions, cronjobs, shares, telegramBots] = await Promise.all([
-      apiGetAgents(), apiGetSessions(), apiGetCronjobs(), apiListShares(), apiGetTelegramBots()
+    const [agents, availableAgents, sessions, cronjobs, shares, telegramBots] = await Promise.all([
+      apiGetAgents(), apiGetAvailableAgents(), apiGetSessions(), apiGetCronjobs(), apiListShares(), apiGetTelegramBots()
     ]);
     const agentMap = {};
-    for (const a of agents) agentMap[a.agentId] = a;
+    for (const a of availableAgents) agentMap[a.agentId] = a;
 
     // Sessions
     const grid = document.getElementById('sessionCards');

wwwroot/js/pages/session-page.js

@@ -75,7 +75,7 @@ registerPage('session', {
     }
 
     // Agents laden + Skills parallel
-    const agents = await apiGetAgents();
+    const agents = await apiGetAvailableAgents();
     const agentMap = {};
     for (const a of agents) agentMap[a.agentId] = a;