Add Democratic fundraising platform.

Co-authored-by: Cursor <cursoragent@cursor.com>

prisma/migrations/20260510190000_add_poll_votes/migration.sql

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+-- AlterEnum
+ALTER TYPE "LedgerType" ADD VALUE 'DEBIT_POLL_VOTE';
+
+-- CreateTable
+CREATE TABLE "PollVote" (
+    "id" TEXT NOT NULL,
+    "pollSlug" TEXT NOT NULL,
+    "userId" TEXT NOT NULL,
+    "displayName" TEXT NOT NULL,
+    "normalizedKey" TEXT NOT NULL,
+    "creditsSpent" INTEGER NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "PollVote_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "PollVote_pollSlug_userId_key" ON "PollVote"("pollSlug", "userId");
+
+-- CreateIndex
+CREATE INDEX "PollVote_pollSlug_normalizedKey_idx" ON "PollVote"("pollSlug", "normalizedKey");
+
+-- AddForeignKey
+ALTER TABLE "PollVote" ADD CONSTRAINT "PollVote_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AlterTable
+ALTER TABLE "LedgerEntry" ADD COLUMN "pollVoteId" TEXT;
+
+-- CreateIndex
+CREATE UNIQUE INDEX "LedgerEntry_pollVoteId_key" ON "LedgerEntry"("pollVoteId");
+
+-- AddForeignKey
+ALTER TABLE "LedgerEntry" ADD CONSTRAINT "LedgerEntry_pollVoteId_fkey" FOREIGN KEY ("pollVoteId") REFERENCES "PollVote"("id") ON DELETE SET NULL ON UPDATE CASCADE;