added favicon

src/web/templates/admin/base.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{% block title %}Admin Panel{% endblock %}</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {

src/web/templates/admin/login.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Login - LinkedIn Posts</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {

src/web/templates/privacy_policy.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Datenschutzerklärung - LinkedIn Workflow</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <style>
         body {
             font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

src/web/templates/user/base.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{% block title %}LinkedIn Posts{% endblock %}</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {

src/web/templates/user/company_base.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{% block title %}{{ session.company_name or 'Unternehmen' }} - LinkedIn Posts{% endblock %}</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {

src/web/templates/user/email_action_result.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{{ title }}</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <style>
         * {
             margin: 0;

src/web/templates/user/employee_base.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{% block title %}Dashboard{% endblock %} - LinkedIn Post Generator</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {

src/web/templates/user/invite_accept.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Einladung annehmen - LinkedIn Posts</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {

src/web/templates/user/login.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Login - LinkedIn Posts</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {

src/web/templates/user/not_authorized.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Nicht autorisiert - LinkedIn Posts</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <style>
         body { background-color: #3d4848; }

src/web/templates/user/onboarding/base.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{% block title %}Onboarding{% endblock %} - LinkedIn Posts</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {

src/web/templates/user/register.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Registrierung - LinkedIn Posts</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {

src/web/templates/user/register_company.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Unternehmens Registrierung - LinkedIn Posts</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {

src/web/templates/user/register_ghostwriter.html

@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Ghostwriter Registrierung - LinkedIn Posts</title>
+    <link rel="icon" type="image/png" href="/static/favicon.png">
     <script src="https://cdn.tailwindcss.com"></script>
     <script>
         tailwind.config = {