feat: unify alerts into one plugin, channels, rules and inbox

src/backend/tests/fixtures/upgrade/upgrade-postgres.sql

@@ -363,6 +363,14 @@ ALTER TABLE "user_preferences" ALTER COLUMN "updated_at" SET DEFAULT CURRENT_TIM
 -- would delete the data first. The columns stay in place, unused, until 3.0.0.
 SELECT 1;
 
+-- ==== core 0059_square_korg ====
+-- dismissed_alerts and notification_channels moved to the alerts plugin. It
+-- renames the first into its own namespace and copies the second at
+-- activation, both after this migration, so a real DROP TABLE here would
+-- delete them first. notification_channels stays in place, unused, until
+-- 3.0.0.
+SELECT 1;
+
 -- ==== plugin workspaces 0001_adopt_user_workspaces.sql ====
 -- workspaces 0001: adopt_user_workspaces
 -- Generated by termix-plugin migrations. Review before committing.
@@ -682,6 +690,24 @@ CREATE TABLE IF NOT EXISTS "automation_channels" (
 CREATE UNIQUE INDEX IF NOT EXISTS "idx_automation_channels_pair" ON "automation_channels" ("automation_id", "channel_id");
 ALTER TABLE "automation_channels" RENAME TO "p_automations_channels";
 
+-- ==== plugin automations 0002_unlink_channels.sql ====
+-- automations 0002: unlink_channels
+-- Hand-written: channels moved from core's notification_channels to the
+-- alerts plugin, so the link table drops its foreign key to the old table.
+-- The constraint's name differs between installs, so the table is rebuilt.
+
+CREATE TABLE IF NOT EXISTS "p_automations_channels_v2" (
+  "id" serial PRIMARY KEY,
+  "automation_id" integer NOT NULL,
+  "channel_id" integer NOT NULL,
+  FOREIGN KEY ("automation_id") REFERENCES "p_automations_automations" ("id") ON DELETE CASCADE
+);
+INSERT INTO "p_automations_channels_v2" ("id", "automation_id", "channel_id") SELECT "id", "automation_id", "channel_id" FROM "p_automations_channels";
+DROP TABLE "p_automations_channels";
+ALTER TABLE "p_automations_channels_v2" RENAME TO "p_automations_channels";
+SELECT setval(pg_get_serial_sequence('p_automations_channels', 'id'), COALESCE((SELECT MAX("id") FROM "p_automations_channels"), 1));
+CREATE UNIQUE INDEX IF NOT EXISTS "idx_automation_channels_pair" ON "p_automations_channels" ("automation_id", "channel_id");
+
 -- ==== plugin homepage 0001_adopt_homepage_tables.sql ====
 -- homepage 0001: adopt_homepage_tables
 -- Generated by termix-plugin migrations. Review before committing.
@@ -784,6 +810,63 @@ CREATE INDEX IF NOT EXISTS "idx_ai_proposals_user" ON "ai_proposals" ("user_id",
 CREATE INDEX IF NOT EXISTS "idx_ai_proposals_conversation" ON "ai_proposals" ("conversation_id");
 ALTER TABLE "ai_proposals" RENAME TO "p_ai_proposals";
 
+-- ==== plugin alerts 0001_create_alerts.sql ====
+-- alerts 0001: create_alerts
+-- Generated by termix-plugin migrations. Review before committing.
+
+CREATE TABLE IF NOT EXISTS "p_alerts_channels" (
+  "id" serial PRIMARY KEY,
+  "user_id" varchar(255) NOT NULL,
+  "name" text NOT NULL,
+  "type" varchar(32) NOT NULL,
+  "config" text,
+  "enabled" boolean NOT NULL DEFAULT true,
+  "created_at" text NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  "updated_at" text NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY ("user_id") REFERENCES "users" ("id") ON DELETE CASCADE
+);
+CREATE INDEX IF NOT EXISTS "idx_alerts_channels_user" ON "p_alerts_channels" ("user_id");
+CREATE TABLE IF NOT EXISTS "p_alerts_items" (
+  "id" serial PRIMARY KEY,
+  "user_id" varchar(255) NOT NULL,
+  "source" varchar(64) NOT NULL,
+  "category" varchar(128) NOT NULL,
+  "severity" varchar(16) NOT NULL,
+  "title" text NOT NULL,
+  "body" text,
+  "link" text,
+  "context" text,
+  "dedupe_key" varchar(255),
+  "deliveries" text,
+  "read_at" varchar(255),
+  "created_at" varchar(255) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY ("user_id") REFERENCES "users" ("id") ON DELETE CASCADE
+);
+CREATE INDEX IF NOT EXISTS "idx_alerts_items_user" ON "p_alerts_items" ("user_id", "created_at");
+CREATE INDEX IF NOT EXISTS "idx_alerts_items_unread" ON "p_alerts_items" ("user_id", "read_at");
+CREATE INDEX IF NOT EXISTS "idx_alerts_items_dedupe" ON "p_alerts_items" ("user_id", "dedupe_key");
+CREATE TABLE IF NOT EXISTS "p_alerts_rules" (
+  "id" serial PRIMARY KEY,
+  "user_id" varchar(255) NOT NULL,
+  "name" text NOT NULL,
+  "pattern" varchar(128) NOT NULL DEFAULT '*',
+  "min_severity" varchar(16) NOT NULL DEFAULT 'warning',
+  "channel_ids" text NOT NULL,
+  "enabled" boolean NOT NULL DEFAULT true,
+  "created_at" text NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY ("user_id") REFERENCES "users" ("id") ON DELETE CASCADE
+);
+CREATE INDEX IF NOT EXISTS "idx_alerts_rules_user" ON "p_alerts_rules" ("user_id");
+CREATE TABLE IF NOT EXISTS "dismissed_alerts" (
+  "id" serial PRIMARY KEY,
+  "user_id" varchar(255) NOT NULL,
+  "alert_id" text NOT NULL,
+  "dismissed_at" text NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY ("user_id") REFERENCES "users" ("id") ON DELETE CASCADE
+);
+CREATE INDEX IF NOT EXISTS "idx_dismissed_alerts_user_id" ON "dismissed_alerts" ("user_id");
+ALTER TABLE "dismissed_alerts" RENAME TO "p_alerts_dismissed";
+
 -- ==== plugin file-manager 0001_adopt_file_manager_tables.sql ====
 -- file-manager 0001: adopt_file_manager_tables
 -- Generated by termix-plugin migrations. Review before committing.