Dashboard-Performance: API-Endpoints konsolidieren

Backend:
- GET /api/sessions: Git-Status inline integriert (parallel pro Session)
  - Neue Hilfsmethoden GetGitStatusSummaryAsync (Counts) und
    GetGitStatusDetailedAsync (Dateinamen, für Einzel-Endpoint)
  - GetSessionsWithStats gibt typisierte SessionWithStats zurück
  - Neue Models: SessionWithStats, GitStatusSummary
- GET /api/agents: Skills inline pro Agent integriert
  - SkillService als Parameter in HandleList
  - Skills als Array mit slug/name/description

Frontend:
- Dashboard: 1 paralleler Promise.all statt sequentieller Requests
  - Vorher: agents → sessions → N×git-status → M×agent-skills → cronjobs → shares
  - Nachher: Promise.all([agents, sessions, cronjobs, shares]) (4 Requests)
  - Git-Status direkt aus Session-Response, Skills aus Agent-Response
- Session-Page: Agent-Skills aus inline-Daten statt N×apiGetAgentSkills

Reduziert Dashboard-Requests von ~4+N+M auf 4 (fix).

wwwroot/js/pages/dashboard.js

@@ -35,12 +35,13 @@ registerPage('dashboard', {
 
     // Telegram-Config parallel pro Session laden (sessions werden gleich geladen)
 
-    const agents = await apiGetAgents();
+    const [agents, sessions, cronjobs, shares] = await Promise.all([
+      apiGetAgents(), apiGetSessions(), apiGetCronjobs(), apiListShares()
+    ]);
     const agentMap = {};
     for (const a of agents) agentMap[a.agentId] = a;
 
     // Sessions
-    const sessions = await apiGetSessions();
     const grid = document.getElementById('sessionCards');
     grid.innerHTML = '';
 
@@ -48,6 +49,37 @@ registerPage('dashboard', {
       const agent = s.agentId ? agentMap[s.agentId] : null;
       const card = buildSessionCard(s, agent);
 
+      // Git-Status aus der Session-Response rendern (inline vom Backend)
+      if (s.gitStatus) {
+        const gs = s.gitStatus;
+        const metaEl = card.querySelector('.card-meta');
+        if (metaEl) {
+          const parts = [];
+          if (gs.add > 0) {
+            const tip = `${gs.add} ${gs.add === 1 ? 'Datei' : 'Dateien'} hinzugefügt`;
+            parts.push(`<span class="git-badge git-add" title="${esc(tip)}">+${gs.add}</span>`);
+          }
+          if (gs.edit > 0) {
+            const tip = `${gs.edit} ${gs.edit === 1 ? 'Datei' : 'Dateien'} geändert`;
+            parts.push(`<span class="git-badge git-edit" title="${esc(tip)}">~${gs.edit}</span>`);
+          }
+          if (gs.delete > 0) {
+            const tip = `${gs.delete} ${gs.delete === 1 ? 'Datei' : 'Dateien'} gelöscht`;
+            parts.push(`<span class="git-badge git-delete" title="${esc(tip)}">-${gs.delete}</span>`);
+          }
+          if (gs.outgoing > 0) {
+            const tip = `${gs.outgoing} ${gs.outgoing === 1 ? 'Commit muss' : 'Commits müssen'} noch gepusht werden`;
+            parts.push(`<span class="git-badge git-outgoing" title="${esc(tip)}"><i class="fa fa-arrow-up"></i> ${gs.outgoing}</span>`);
+          }
+          if (parts.length) {
+            const gitEl = document.createElement('span');
+            gitEl.className = 'card-meta-item card-git-status';
+            gitEl.innerHTML = parts.join(' ');
+            metaEl.appendChild(gitEl);
+          }
+        }
+      }
+
       // Menü zum title-row hinzufügen
       const titleRow = card.querySelector('.card-title-row');
       titleRow.insertAdjacentHTML('beforeend', `<div class="card-menu">
@@ -105,44 +137,6 @@ registerPage('dashboard', {
         navigateTo('session', { id: s.sessionId });
       });
       grid.appendChild(card);
-
-      // Git-Status asynchron laden
-      if (s.workspace) {
-        apiGitStatus(s.sessionId).then(status => {
-          if (!status || status.error) return;
-          const addCount = (status.add || []).length;
-          const editCount = (status.edit || []).length;
-          const deleteCount = (status.delete || []).length;
-          const outgoing = status.outgoing || 0;
-          if (addCount + editCount + deleteCount + outgoing === 0) return;
-
-          const metaEl = card.querySelector('.card-meta');
-          if (!metaEl) return;
-
-          const parts = [];
-          if (addCount > 0) {
-            const tip = `${addCount} ${addCount === 1 ? 'Datei' : 'Dateien'} hinzugefügt`;
-            parts.push(`<span class="git-badge git-add" title="${esc(tip)}">+${addCount}</span>`);
-          }
-          if (editCount > 0) {
-            const tip = `${editCount} ${editCount === 1 ? 'Datei' : 'Dateien'} geändert`;
-            parts.push(`<span class="git-badge git-edit" title="${esc(tip)}">~${editCount}</span>`);
-          }
-          if (deleteCount > 0) {
-            const tip = `${deleteCount} ${deleteCount === 1 ? 'Datei' : 'Dateien'} gelöscht`;
-            parts.push(`<span class="git-badge git-delete" title="${esc(tip)}">-${deleteCount}</span>`);
-          }
-          if (outgoing > 0) {
-            const tip = `${outgoing} ${outgoing === 1 ? 'Commit muss' : 'Commits müssen'} noch gepusht werden`;
-            parts.push(`<span class="git-badge git-outgoing" title="${esc(tip)}"><i class="fa fa-arrow-up"></i> ${outgoing}</span>`);
-          }
-
-          const gitEl = document.createElement('span');
-          gitEl.className = 'card-meta-item card-git-status';
-          gitEl.innerHTML = parts.join(' ');
-          metaEl.appendChild(gitEl);
-        });
-      }
     }
 
 
@@ -154,14 +148,8 @@ registerPage('dashboard', {
     const agentGrid = document.getElementById('agentCards');
     agentGrid.innerHTML = '';
 
-    // Skills pro Agent parallel laden
-    const agentSkillsMap = {};
-    await Promise.all(agents.map(async a => {
-      agentSkillsMap[a.agentId] = await apiGetAgentSkills(a.agentId);
-    }));
-
     for (const a of agents) {
-      const skills = agentSkillsMap[a.agentId] || [];
+      const skills = a.skills || [];
       const card = buildAgentCard(a, skills);
 
       // Menü zum title-row hinzufügen
@@ -213,7 +201,6 @@ registerPage('dashboard', {
     document.getElementById('newAgentBtn').addEventListener('click', () => navigateTo('agent'));
 
     // Cronjobs
-    const cronjobs = await apiGetCronjobs();
     const cronjobGrid = document.getElementById('cronjobCards');
     cronjobGrid.innerHTML = '';
 
@@ -303,7 +290,6 @@ registerPage('dashboard', {
     document.getElementById('newCronjobBtn').addEventListener('click', () => navigateTo('cronjob'));
 
     // Shared Links
-    const shares = await apiListShares();
     const sharedSection = document.getElementById('sharedLinksSection');
     const sharedGrid = document.getElementById('sharedLinksCards');
     if (shares.length > 0) {

wwwroot/js/pages/session-page.js

@@ -89,9 +89,9 @@ registerPage('session', {
     for (const a of agents) agentMap[a.agentId] = a;
 
     const agentSkillsMap = {};
-    await Promise.all(agents.map(async a => {
-      agentSkillsMap[a.agentId] = await apiGetAgentSkills(a.agentId);
-    }));
+    for (const a of agents) {
+      agentSkillsMap[a.agentId] = a.skills || [];
+    }
 
     function renderAgentInCard(cardEl, agent, emptyIcon, emptyText) {
       cardEl.innerHTML = '';