v4.1.6 UX polish: homepage, navbar, tools consistency

Homepage:
- Minimal floating icons with gold hover effect
- Larger Stegasoo title (display-5)
- v4.1 badge repositioned to bottom-left of logo
- Tighter 8px gap between logo and title

Navbar:
- Container-fluid for fixed left positioning
- Reduced left padding, proper logo/badge spacing
- Channel fingerprint in gold, shield icon brighter

Tools page:
- Consistent font styling (0.62rem, weight 500, 1px spacing)
- Wider buttons (64px) with more gap
- Bolder text on hover (weight 600)

Typography consistency across nav, homepage, and tools.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontends/web/static/style.css

@@ -180,6 +180,10 @@ body {
     z-index: 1030;  /* Above page content for dropdowns */
 }
 
+.navbar > .container {
+    padding-left: 0;
+}
+
 /* Ensure navbar dropdown appears above all page content */
 .navbar .dropdown-menu {
     z-index: 1031;
@@ -219,9 +223,9 @@ body {
     left: 50%;
     transform: translateX(-50%) translateY(-4px);
     font-size: 0.7rem;
-    font-weight: 700;
+    font-weight: 500;
     text-transform: uppercase;
-    letter-spacing: 0.5px;
+    letter-spacing: 1px;
     white-space: nowrap;
     opacity: 0;
     pointer-events: none;
@@ -1881,7 +1885,7 @@ footer {
 .tools-ribbon-group {
     display: flex;
     align-items: center;
-    gap: 0.25rem;
+    gap: 0.5rem;
 }
 
 .tools-ribbon-divider {
@@ -1898,8 +1902,8 @@ footer {
     flex-direction: column;
     align-items: center;
     justify-content: center;
-    width: 52px;
-    height: 48px;
+    width: 64px;
+    height: 52px;
     padding: 0.25rem;
     border: 1px solid transparent;
     border-radius: 0.375rem;
@@ -1915,15 +1919,17 @@ footer {
 }
 
 .tool-icon-btn span {
-    font-size: 0.6rem;
+    font-size: 0.62rem;
+    font-weight: 500;
     text-transform: uppercase;
-    letter-spacing: 0.3px;
+    letter-spacing: 1px;
 }
 
 .tool-icon-btn:hover {
     background: rgba(255, 230, 150, 0.1);
     border-color: rgba(255, 230, 150, 0.3);
     color: var(--header-gold);
+    font-weight: 600;
     text-shadow: 0 1px 2px rgba(0, 0, 0, 0.33);
 }