Simplify routing to award assignment, seed all CSV entries, fix category mapping

- Remove RoutingRule model and routing engine (replaced by direct award assignment)
- Simplify RoutingMode enum: PARALLEL/POST_MAIN → SHARED, keep EXCLUSIVE
- Remove routing router, routing-rules-editor, and related tests
- Update pipeline, award, and notification code to remove routing references
- Seed: include all CSV entries (no filtering/dedup), AI screening handles duplicates
- Seed: fix non-breaking space (U+00A0) bug in category/issue mapping
- Stage filtering: add duplicate detection that flags projects for admin review

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

tests/helpers.ts

@@ -257,35 +257,6 @@ export async function createTestEvaluationForm(
   })
 }
 
-// ─── Routing Rule Factory ──────────────────────────────────────────────────
-
-export async function createTestRoutingRule(
-  pipelineId: string,
-  destinationTrackId: string,
-  overrides: Partial<{
-    name: string
-    priority: number
-    predicateJson: Record<string, unknown>
-    sourceTrackId: string
-    destinationStageId: string
-    isActive: boolean
-  }> = {},
-) {
-  const id = uid('rule')
-  return prisma.routingRule.create({
-    data: {
-      id,
-      pipelineId,
-      name: overrides.name ?? `Rule ${id}`,
-      destinationTrackId,
-      sourceTrackId: overrides.sourceTrackId ?? null,
-      destinationStageId: overrides.destinationStageId ?? null,
-      predicateJson: (overrides.predicateJson ?? { field: 'project.status', operator: 'eq', value: 'SUBMITTED' }) as any,
-      priority: overrides.priority ?? 0,
-      isActive: overrides.isActive ?? true,
-    },
-  })
-}
 
 // ─── Filtering Rule Factory ────────────────────────────────────────────────
 
@@ -397,7 +368,6 @@ export async function cleanupTestData(programId: string, userIds: string[] = [])
   await prisma.evaluationDiscussion.deleteMany({ where: { stage: { track: { pipeline: { programId } } } } })
   await prisma.projectStageState.deleteMany({ where: { track: { pipeline: { programId } } } })
   await prisma.stageTransition.deleteMany({ where: { fromStage: { track: { pipeline: { programId } } } } })
-  await prisma.routingRule.deleteMany({ where: { pipeline: { programId } } })
   await prisma.awardEligibility.deleteMany({ where: { award: { program: { id: programId } } } })
   await prisma.awardVote.deleteMany({ where: { award: { program: { id: programId } } } })
   await prisma.awardJuror.deleteMany({ where: { award: { program: { id: programId } } } })