api: spam check settings, lookups and cache

SD1 (14 §9): the spam/lookups tables and calls columns, the
IPQualityScore and FTC lookups with the cache, the spam settings with
write-only keys, the provider Test routes and Settings → Spam check.

apps/api/src/db/migrations/0014_spam_check.sql

@@ -0,0 +1,25 @@
+CREATE TABLE "ftc_complaints" (
+	"id" text PRIMARY KEY NOT NULL,
+	"number" text NOT NULL,
+	"reported_at" timestamp with time zone NOT NULL,
+	"subject" text,
+	"robocall" boolean,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "spam_lookups" (
+	"number" text PRIMARY KEY NOT NULL,
+	"provider" text NOT NULL,
+	"risk" text NOT NULL,
+	"info" jsonb NOT NULL,
+	"expires_at" timestamp with time zone NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
+	"updated_at" timestamp with time zone DEFAULT now() NOT NULL,
+	CONSTRAINT "spam_lookups_risk_check" CHECK ("spam_lookups"."risk" in ('low', 'medium', 'high'))
+);
+--> statement-breakpoint
+ALTER TABLE "calls" ADD COLUMN "spam_risk" text;--> statement-breakpoint
+ALTER TABLE "calls" ADD COLUMN "spam_info" jsonb;--> statement-breakpoint
+CREATE INDEX "ftc_complaints_number_index" ON "ftc_complaints" USING btree ("number");--> statement-breakpoint
+CREATE INDEX "ftc_complaints_reported_at_index" ON "ftc_complaints" USING btree ("reported_at");--> statement-breakpoint
+CREATE INDEX "spam_lookups_expires_at_index" ON "spam_lookups" USING btree ("expires_at");

apps/api/src/db/migrations/meta/_journal.json

@@ -99,6 +99,13 @@
       "when": 1793052019332,
       "tag": "0013_mobile_devices",
       "breakpoints": true
+    },
+    {
+      "idx": 14,
+      "version": "7",
+      "when": 1793127210386,
+      "tag": "0014_spam_check",
+      "breakpoints": true
     }
   ]
 }

apps/api/src/db/schema.ts

@@ -630,11 +630,46 @@ export const calls = pgTable(
     answeredByExtensionId: uuid().references(() => extensions.id, { onDelete: 'set null' }),
     talkSeconds: integer().notNull().default(0),
     recordingId: uuid().references(() => recordings.id, { onDelete: 'set null' }),
+    /** The spam check of an incoming call's number (14 §6); null = not checked. */
+    spamRisk: text(),
+    spamInfo: jsonb(),
     ...timestamps,
   },
   (t) => [index().on(t.startedAt.desc())],
 );
 
+// ───────────── spam check (14 §7) ─────────────
+/** IPQualityScore answers, so a caller who rings again costs no credit (14 §4). */
+export const spamLookups = pgTable(
+  'spam_lookups',
+  {
+    number: text().primaryKey(),
+    provider: text().notNull(),
+    risk: text().notNull(),
+    info: jsonb().notNull(),
+    expiresAt: tstz().notNull(),
+    ...timestamps,
+  },
+  (t) => [
+    index().on(t.expiresAt),
+    check('spam_lookups_risk_check', sql`${t.risk} in ('low', 'medium', 'high')`),
+  ],
+);
+
+/** The local copy of the FTC's Do Not Call complaints (14 §2.2). */
+export const ftcComplaints = pgTable(
+  'ftc_complaints',
+  {
+    id: text().primaryKey(),
+    number: text().notNull(),
+    reportedAt: tstz().notNull(),
+    subject: text(),
+    robocall: boolean(),
+    createdAt: createdAt(),
+  },
+  (t) => [index().on(t.number), index().on(t.reportedAt)],
+);
+
 export const callExtensions = pgTable(
   'call_extensions',
   {