refactor: Remove emojis and band colors from codebase

- Simplify Vertical model (remove color, emoji fields)
- Update vertical-context.tsx to just slug/name
- Update band-selector.tsx (no colors)
- Update all [vertical] page routes (no emojis in headings)

Themes will be added later as a separate feature.

backend/models.py

@@ -64,10 +64,6 @@ class Vertical(SQLModel, table=True):
     # Link to primary artist/band for this vertical
     primary_artist_id: Optional[int] = Field(default=None, foreign_key="artist.id")
     
-    # Theming
-    color: Optional[str] = Field(default=None, description="Hex color for branding")
-    emoji: Optional[str] = Field(default=None, description="Display emoji")
-    
     shows: List["Show"] = Relationship(back_populates="vertical")
     songs: List["Song"] = Relationship(back_populates="vertical")
 

frontend/app/[vertical]/page.tsx

@@ -21,10 +21,7 @@ export default function VerticalPage({ params }: Props) {
     return (
         <div className="space-y-8">
             <div className="text-center space-y-4">
-                <h1 className="text-4xl font-bold flex items-center justify-center gap-4">
-                    <span className="text-5xl">{vertical.emoji}</span>
-                    <span style={{ color: vertical.color }}>{vertical.name}</span>
-                </h1>
+                <h1 className="text-4xl font-bold">{vertical.name}</h1>
                 <p className="text-muted-foreground max-w-2xl mx-auto">
                     Explore setlists, rate performances, and connect with the {vertical.name} community.
                 </p>

frontend/app/[vertical]/shows/page.tsx

@@ -36,10 +36,7 @@ export default async function ShowsPage({ params }: Props) {
     return (
         <div className="space-y-6">
             <div className="flex items-center justify-between">
-                <h1 className="text-3xl font-bold">
-                    <span className="mr-2">{vertical.emoji}</span>
-                    {vertical.name} Shows
-                </h1>
+                <h1 className="text-3xl font-bold">{vertical.name} Shows</h1>
             </div>
 
             {shows.length === 0 ? (

frontend/app/[vertical]/songs/page.tsx

@@ -36,10 +36,7 @@ export default async function SongsPage({ params }: Props) {
     return (
         <div className="space-y-6">
             <div className="flex items-center justify-between">
-                <h1 className="text-3xl font-bold">
-                    <span className="mr-2">{vertical.emoji}</span>
-                    {vertical.name} Songs
-                </h1>
+                <h1 className="text-3xl font-bold">{vertical.name} Songs</h1>
             </div>
 
             {songs.length === 0 ? (

frontend/app/[vertical]/venues/page.tsx

@@ -36,10 +36,7 @@ export default async function VenuesPage({ params }: Props) {
     return (
         <div className="space-y-6">
             <div className="flex items-center justify-between">
-                <h1 className="text-3xl font-bold">
-                    <span className="mr-2">{vertical.emoji}</span>
-                    {vertical.name} Venues
-                </h1>
+                <h1 className="text-3xl font-bold">{vertical.name} Venues</h1>
             </div>
 
             {venues.length === 0 ? (

frontend/components/layout/band-selector.tsx

@@ -26,9 +26,7 @@ export function BandSelector() {
                 <Button
                     variant="ghost"
                     className="flex items-center gap-2 font-bold text-lg"
-                    style={{ color: current.color }}
                 >
-                    <span>{current.emoji}</span>
                     <span>{current.name}</span>
                     <ChevronDown className="h-4 w-4 opacity-50" />
                 </Button>
@@ -38,15 +36,9 @@ export function BandSelector() {
                     <DropdownMenuItem
                         key={vertical.slug}
                         onClick={() => handleSelect(vertical.slug)}
-                        className="flex items-center gap-3 cursor-pointer"
+                        className={`cursor-pointer ${vertical.slug === current.slug ? "font-bold" : ""}`}
                     >
-                        <span className="text-lg">{vertical.emoji}</span>
-                        <span
-                            className={vertical.slug === current.slug ? "font-bold" : ""}
-                            style={{ color: vertical.slug === current.slug ? vertical.color : undefined }}
-                        >
-                            {vertical.name}
-                        </span>
+                        {vertical.name}
                     </DropdownMenuItem>
                 ))}
             </DropdownMenuContent>

frontend/contexts/vertical-context.tsx

@@ -5,11 +5,11 @@ import { usePathname } from "next/navigation"
 
 // Supported verticals (bands)
 export const VERTICALS = [
-    { slug: "goose", name: "Goose", emoji: "🦆", color: "#F59E0B" },
-    { slug: "phish", name: "Phish", emoji: "🐟", color: "#EF4444" },
-    { slug: "grateful-dead", name: "Grateful Dead", emoji: "💀", color: "#8B5CF6" },
-    { slug: "dead-and-company", name: "Dead & Company", emoji: "⚡", color: "#3B82F6" },
-    { slug: "billy-strings", name: "Billy Strings", emoji: "🎸", color: "#10B981" },
+    { slug: "goose", name: "Goose" },
+    { slug: "phish", name: "Phish" },
+    { slug: "grateful-dead", name: "Grateful Dead" },
+    { slug: "dead-and-company", name: "Dead & Company" },
+    { slug: "billy-strings", name: "Billy Strings" },
 ] as const
 
 export type VerticalSlug = typeof VERTICALS[number]["slug"]
@@ -17,8 +17,6 @@ export type VerticalSlug = typeof VERTICALS[number]["slug"]
 export interface Vertical {
     slug: VerticalSlug
     name: string
-    emoji: string
-    color: string
 }
 
 interface VerticalContextType {