fix(db): target the users table in the v1.22 AI-settings migration

The AI-settings migration altered "User" but the table is "users"; deploy
would abort with relation "User" does not exist. Correct the identifier and
make both v1.22 column additions rerun-safe with IF NOT EXISTS.

prisma/migrations/0197_coach_plan_outcome/migration.sql

@@ -3,4 +3,4 @@
 -- processed, the grounded before/after result is written here. Additive,
 -- nullable Bytes column — no backfill, no enum change (the new statuses
 -- review_due / reviewed are app-side strings on the existing `status` column).
-ALTER TABLE "coach_plans" ADD COLUMN "outcome_encrypted" BYTEA;
+ALTER TABLE "coach_plans" ADD COLUMN IF NOT EXISTS "outcome_encrypted" BYTEA;

prisma/migrations/0198_v122_ai_settings/migration.sql

@@ -17,10 +17,10 @@
 --       encrypted-columns registry + the rotation script).
 --
 -- All columns are nullable / defaulted, so existing rows need no backfill.
-ALTER TABLE "User"
-  ADD COLUMN "ai_response_timeout_seconds" INTEGER,
-  ADD COLUMN "ai_ocr_enabled" BOOLEAN NOT NULL DEFAULT false,
-  ADD COLUMN "ai_ocr_provider" TEXT,
-  ADD COLUMN "ai_ocr_model" TEXT,
-  ADD COLUMN "ai_ocr_base_url" TEXT,
-  ADD COLUMN "ai_ocr_key_encrypted" TEXT;
+ALTER TABLE "users"
+  ADD COLUMN IF NOT EXISTS "ai_response_timeout_seconds" INTEGER,
+  ADD COLUMN IF NOT EXISTS "ai_ocr_enabled" BOOLEAN NOT NULL DEFAULT false,
+  ADD COLUMN IF NOT EXISTS "ai_ocr_provider" TEXT,
+  ADD COLUMN IF NOT EXISTS "ai_ocr_model" TEXT,
+  ADD COLUMN IF NOT EXISTS "ai_ocr_base_url" TEXT,
+  ADD COLUMN IF NOT EXISTS "ai_ocr_key_encrypted" TEXT;