feat(boc): Complete module pages with enterprise design

- All 9 module pages: Dashboard, CRM, Sales, Finance, HR, Legal, Marketing, Support, Automation
- Shared boc.js with API utilities
- Landvex enterprise design: dark sidebar, light content
- SVG icons, no emojis
- Tables with real data loading
- Consistent navigation and auth

web/assets/boc.css

@@ -1,7 +1,6 @@
 /* ============================================
    BOC — Business Operations Center
-   Design System: Landvex Enterprise
-   Light theme, no emojis, professional
+   Enterprise Design System
    ============================================ */
 
 :root {
@@ -149,7 +148,9 @@ body {
   margin-bottom: 6px;
 }
 
-.form-group input {
+.form-group input,
+.form-group select,
+.form-group textarea {
   width: 100%;
   padding: 12px 16px;
   border: 1px solid var(--border-strong);
@@ -161,13 +162,16 @@ body {
   transition: border-color 0.15s, box-shadow 0.15s;
 }
 
-.form-group input:focus {
+.form-group input:focus,
+.form-group select:focus,
+.form-group textarea:focus {
   outline: none;
   border-color: var(--brand);
   box-shadow: 0 0 0 3px var(--brand-glow);
 }
 
-.form-group input::placeholder {
+.form-group input::placeholder,
+.form-group textarea::placeholder {
   color: var(--text-muted);
 }