feat(design): Projector Noir theme - tungsten amber on film-black

Full visual refonte replacing the generic neon-blue glass look:

- palette: warm film-black surface ladder, tungsten amber primary,
  warm taupe secondary, verdigris teal tertiary; semantic and
  category colors retuned to match (coral live, gold movies)
- typography: Syne (display/headlines) + Instrument Sans (body/UI)
  replace Space Grotesk/Inter/Outfit across all screens
- glassmorphism tokens warmed (amber inner glow, warm-white borders)
- web player theme.css + index.html loader mirror the new tokens
- hardcoded Colors.blue* in streaming settings and recordings tabs
  now use AppColors tokens
- DESIGN_SYSTEM.md updated to v3.0 Projector Noir

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

lib/features/iptv/screens/playlist_selection_screen.dart

@@ -1,4 +1,4 @@
-import 'package:flutter/material.dart';
+import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 import 'package:google_fonts/google_fonts.dart';
@@ -97,7 +97,7 @@ class PlaylistSelectionScreen extends ConsumerWidget {
                       const SizedBox(height: 16),
                       Text(
                         'Error loading playlists',
-                        style: GoogleFonts.outfit(
+                        style: GoogleFonts.syne(
                           fontSize: 18,
                           color: AppColors.textSecondary,
                         ),
@@ -109,7 +109,7 @@ class PlaylistSelectionScreen extends ConsumerWidget {
                           backgroundColor: AppColors.primary,
                           foregroundColor: AppColors.textPrimary,
                         ),
-                        child: Text('Retry', style: GoogleFonts.inter()),
+                        child: Text('Retry', style: GoogleFonts.instrumentSans()),
                       ),
                     ],
                   ),
@@ -128,7 +128,7 @@ class PlaylistSelectionScreen extends ConsumerWidget {
                           const SizedBox(height: 16),
                           Text(
                             'No playlists available',
-                            style: GoogleFonts.outfit(
+                            style: GoogleFonts.syne(
                               fontSize: 18,
                               color: Colors.white60,
                             ),
@@ -138,7 +138,7 @@ class PlaylistSelectionScreen extends ConsumerWidget {
                             currentUser?.isAdmin ?? false
                                 ? 'Add playlists in Admin Panel'
                                 : 'Contact administrator',
-                            style: GoogleFonts.inter(
+                            style: GoogleFonts.instrumentSans(
                               fontSize: 14,
                               color: Colors.white38,
                             ),
@@ -269,7 +269,7 @@ class _PlaylistCardState extends State<_PlaylistCard> {
               const SizedBox(height: 20),
               Text(
                 widget.playlist.name,
-                style: GoogleFonts.outfit(
+                style: GoogleFonts.syne(
                   fontSize: 22,
                   fontWeight: FontWeight.bold,
                   color: Colors.white,
@@ -281,7 +281,7 @@ class _PlaylistCardState extends State<_PlaylistCard> {
               const SizedBox(height: 8),
               Text(
                 Uri.tryParse(widget.playlist.dns)?.host ?? widget.playlist.dns,
-                style: GoogleFonts.inter(
+                style: GoogleFonts.instrumentSans(
                   fontSize: 13,
                   color: Colors.white38,
                   letterSpacing: 0.5,