Round system redesign: criteria voting, audience voting, pipeline view, and admin UX improvements

- Schema: Extend LiveVotingSession with votingMode, criteriaJson, audience fields;
  add AudienceVoter model; make LiveVote.userId nullable for audience voters
- Backend: Criteria-based voting with weighted scores, audience registration/voting
  with token-based dedup, configurable jury/audience weight in results
- Jury UI: Criteria scoring with per-criterion sliders alongside simple 1-10 mode
- Public audience voting page at /vote/[sessionId] with mobile-first design
- Admin live voting: Tabbed layout (Session/Config/Results), criteria config,
  audience settings, weight-adjustable results with tie detection
- Round type settings: Visual card selector replacing dropdown, feature tags
- Round detail page: Live event status section, type-specific stats and actions
- Round pipeline view: Horizontal visualization with bottleneck detection,
  List/Pipeline toggle on rounds page
- SSE: Separate jury/audience vote events, audience vote tracking
- Field visibility: Hide irrelevant fields per round type in create/edit forms

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

prisma/schema.prisma

@@ -1059,39 +1059,77 @@ model LiveVotingSession {
   votingEndsAt             DateTime?
   projectOrderJson         Json?     @db.JsonB  // Array of project IDs in presentation order
 
+  // Criteria-based voting
+  votingMode               String    @default("simple") // "simple" (1-10) | "criteria" (per-criterion scores)
+  criteriaJson             Json?     @db.JsonB           // Array of { id, label, description, scale, weight }
+
   // Audience & presentation settings
   allowAudienceVotes       Boolean   @default(false)
   audienceVoteWeight       Float     @default(0)    // 0.0 to 1.0
   tieBreakerMethod         String    @default("admin_decides") // 'admin_decides' | 'highest_individual' | 'revote'
   presentationSettingsJson Json?     @db.JsonB
 
+  // Audience voting configuration
+  audienceVotingMode       String    @default("disabled") // "disabled" | "per_project" | "per_category" | "favorites"
+  audienceMaxFavorites     Int       @default(3)           // For "favorites" mode
+  audienceRequireId        Boolean   @default(false)       // Require email/phone for audience
+  audienceVotingDuration   Int?                            // Minutes (null = same as jury)
+
   createdAt                DateTime  @default(now())
   updatedAt                DateTime  @updatedAt
 
   // Relations
   round                    Round     @relation(fields: [roundId], references: [id], onDelete: Cascade)
   votes                    LiveVote[]
+  audienceVoters           AudienceVoter[]
 
   @@index([status])
 }
 
 model LiveVote {
-  id              String   @id @default(cuid())
-  sessionId       String
-  projectId       String
-  userId          String
-  score           Int      // 1-10
-  isAudienceVote  Boolean  @default(false)
-  votedAt         DateTime @default(now())
+  id                  String   @id @default(cuid())
+  sessionId           String
+  projectId           String
+  userId              String?                    // Nullable for audience voters without accounts
+  score               Int                        // 1-10 (or weighted score for criteria mode)
+  isAudienceVote      Boolean  @default(false)
+  votedAt             DateTime @default(now())
+
+  // Criteria scores (used when votingMode="criteria")
+  criterionScoresJson Json?    @db.JsonB          // { [criterionId]: score } - null for simple mode
+
+  // Audience voter link
+  audienceVoterId     String?
 
   // Relations
-  session    LiveVotingSession @relation(fields: [sessionId], references: [id], onDelete: Cascade)
-  user       User              @relation(fields: [userId], references: [id], onDelete: Cascade)
+  session        LiveVotingSession @relation(fields: [sessionId], references: [id], onDelete: Cascade)
+  user           User?             @relation(fields: [userId], references: [id], onDelete: Cascade)
+  audienceVoter  AudienceVoter?    @relation(fields: [audienceVoterId], references: [id], onDelete: Cascade)
 
   @@unique([sessionId, projectId, userId])
+  @@unique([sessionId, projectId, audienceVoterId])
   @@index([sessionId])
   @@index([projectId])
   @@index([userId])
+  @@index([audienceVoterId])
+}
+
+model AudienceVoter {
+  id             String   @id @default(cuid())
+  sessionId      String
+  token          String   @unique         // Unique voting token (UUID)
+  identifier     String?                  // Optional: email, phone, or name
+  identifierType String?                  // "email" | "phone" | "name" | "anonymous"
+  ipAddress      String?
+  userAgent      String?
+  createdAt      DateTime @default(now())
+
+  // Relations
+  session   LiveVotingSession @relation(fields: [sessionId], references: [id], onDelete: Cascade)
+  votes     LiveVote[]
+
+  @@index([sessionId])
+  @@index([token])
 }
 
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