Platform polish: bulk invite, file requirements, filtering redesign, UX fixes

- F1: Set seed jury/mentors/observers to NONE status (not invited), remove passwords
- F2: Add bulk invite UI with checkbox selection and floating toolbar
- F3: Add getProjectRequirements backend query + requirement slots on project detail
- F4: Redesign filtering section: AI criteria textarea, "What AI sees" card,
  field-aware eligibility rules with human-readable previews
- F5: Auto-redirect to pipeline detail when only one pipeline exists
- F6: Make project names clickable in pipeline intake panel
- F7: Fix pipeline creation error: edition context fallback + .min(1) validation
- Pipeline wizard sections: add isActive locking, info tooltips, UX improvements

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

src/server/services/ai-assignment.ts

@@ -80,6 +80,7 @@ interface AssignmentConstraints {
   requiredReviewsPerProject: number
   minAssignmentsPerJuror?: number
   maxAssignmentsPerJuror?: number
+  jurorLimits?: Record<string, number> // userId -> personal max assignments
   existingAssignments: Array<{
     jurorId: string
     projectId: string
@@ -260,9 +261,24 @@ function buildBatchPrompt(
     }))
     .filter((a) => a.jurorId && a.projectId)
 
+  // Build per-juror limits mapped to anonymous IDs
+  let jurorLimitsStr = ''
+  if (constraints.jurorLimits && Object.keys(constraints.jurorLimits).length > 0) {
+    const anonymousLimits: Record<string, number> = {}
+    for (const [realId, limit] of Object.entries(constraints.jurorLimits)) {
+      const anonId = jurorIdMap.get(realId)
+      if (anonId) {
+        anonymousLimits[anonId] = limit
+      }
+    }
+    if (Object.keys(anonymousLimits).length > 0) {
+      jurorLimitsStr = `\nJUROR_LIMITS: ${JSON.stringify(anonymousLimits)} (per-juror max assignments, override global max)`
+    }
+  }
+
   return `JURORS: ${JSON.stringify(jurors)}
 PROJECTS: ${JSON.stringify(projects)}
-CONSTRAINTS: ${constraints.requiredReviewsPerProject} reviews/project, max ${constraints.maxAssignmentsPerJuror || 'unlimited'}/juror
+CONSTRAINTS: ${constraints.requiredReviewsPerProject} reviews/project, max ${constraints.maxAssignmentsPerJuror || 'unlimited'}/juror${jurorLimitsStr}
 EXISTING: ${JSON.stringify(anonymousExisting)}
 Return JSON: {"assignments": [...]}`
 }