Add agent config revisions, issue-approval links, and robust migration reconciliation

Add agent_config_revisions table for tracking agent configuration changes with
rollback support. Add issue_approvals junction table linking issues to approvals.
New migrations (0005, 0006) for permissions column and new tables. Rework migration
client with statement-level idempotency checks (table/column/index/constraint
existence) so migrations can be safely retried against partially-migrated databases.

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

packages/db/src/migrations/0005_chief_luke_cage.sql

@@ -0,0 +1,19 @@
+CREATE TABLE "approval_comments" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"company_id" uuid NOT NULL,
+	"approval_id" uuid NOT NULL,
+	"author_agent_id" uuid,
+	"author_user_id" text,
+	"body" text NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
+	"updated_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+ALTER TABLE "agents" ADD COLUMN "permissions" jsonb DEFAULT '{}'::jsonb NOT NULL;--> statement-breakpoint
+ALTER TABLE "companies" ADD COLUMN "require_board_approval_for_new_agents" boolean DEFAULT true NOT NULL;--> statement-breakpoint
+ALTER TABLE "approval_comments" ADD CONSTRAINT "approval_comments_company_id_companies_id_fk" FOREIGN KEY ("company_id") REFERENCES "public"."companies"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "approval_comments" ADD CONSTRAINT "approval_comments_approval_id_approvals_id_fk" FOREIGN KEY ("approval_id") REFERENCES "public"."approvals"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "approval_comments" ADD CONSTRAINT "approval_comments_author_agent_id_agents_id_fk" FOREIGN KEY ("author_agent_id") REFERENCES "public"."agents"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+CREATE INDEX "approval_comments_company_idx" ON "approval_comments" USING btree ("company_id");--> statement-breakpoint
+CREATE INDEX "approval_comments_approval_idx" ON "approval_comments" USING btree ("approval_id");--> statement-breakpoint
+CREATE INDEX "approval_comments_approval_created_idx" ON "approval_comments" USING btree ("approval_id","created_at");--> statement-breakpoint

packages/db/src/migrations/0006_overjoyed_mister_sinister.sql

@@ -0,0 +1,36 @@
+CREATE TABLE "agent_config_revisions" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"company_id" uuid NOT NULL,
+	"agent_id" uuid NOT NULL,
+	"created_by_agent_id" uuid,
+	"created_by_user_id" text,
+	"source" text DEFAULT 'patch' NOT NULL,
+	"rolled_back_from_revision_id" uuid,
+	"changed_keys" jsonb DEFAULT '[]'::jsonb NOT NULL,
+	"before_config" jsonb NOT NULL,
+	"after_config" jsonb NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "issue_approvals" (
+	"company_id" uuid NOT NULL,
+	"issue_id" uuid NOT NULL,
+	"approval_id" uuid NOT NULL,
+	"linked_by_agent_id" uuid,
+	"linked_by_user_id" text,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
+	CONSTRAINT "issue_approvals_pk" PRIMARY KEY("issue_id","approval_id")
+);
+--> statement-breakpoint
+ALTER TABLE "agent_config_revisions" ADD CONSTRAINT "agent_config_revisions_company_id_companies_id_fk" FOREIGN KEY ("company_id") REFERENCES "public"."companies"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "agent_config_revisions" ADD CONSTRAINT "agent_config_revisions_agent_id_agents_id_fk" FOREIGN KEY ("agent_id") REFERENCES "public"."agents"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "agent_config_revisions" ADD CONSTRAINT "agent_config_revisions_created_by_agent_id_agents_id_fk" FOREIGN KEY ("created_by_agent_id") REFERENCES "public"."agents"("id") ON DELETE set null ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "issue_approvals" ADD CONSTRAINT "issue_approvals_company_id_companies_id_fk" FOREIGN KEY ("company_id") REFERENCES "public"."companies"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "issue_approvals" ADD CONSTRAINT "issue_approvals_issue_id_issues_id_fk" FOREIGN KEY ("issue_id") REFERENCES "public"."issues"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "issue_approvals" ADD CONSTRAINT "issue_approvals_approval_id_approvals_id_fk" FOREIGN KEY ("approval_id") REFERENCES "public"."approvals"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "issue_approvals" ADD CONSTRAINT "issue_approvals_linked_by_agent_id_agents_id_fk" FOREIGN KEY ("linked_by_agent_id") REFERENCES "public"."agents"("id") ON DELETE set null ON UPDATE no action;--> statement-breakpoint
+CREATE INDEX "agent_config_revisions_company_agent_created_idx" ON "agent_config_revisions" USING btree ("company_id","agent_id","created_at");--> statement-breakpoint
+CREATE INDEX "agent_config_revisions_agent_created_idx" ON "agent_config_revisions" USING btree ("agent_id","created_at");--> statement-breakpoint
+CREATE INDEX "issue_approvals_issue_idx" ON "issue_approvals" USING btree ("issue_id");--> statement-breakpoint
+CREATE INDEX "issue_approvals_approval_idx" ON "issue_approvals" USING btree ("approval_id");--> statement-breakpoint
+CREATE INDEX "issue_approvals_company_idx" ON "issue_approvals" USING btree ("company_id");

packages/db/src/migrations/meta/_journal.json

@@ -36,6 +36,20 @@
       "when": 1771545600000,
       "tag": "0004_issue_identifiers",
       "breakpoints": true
+    },
+    {
+      "idx": 5,
+      "version": "7",
+      "when": 1771545601000,
+      "tag": "0005_chief_luke_cage",
+      "breakpoints": true
+    },
+    {
+      "idx": 6,
+      "version": "7",
+      "when": 1771545602000,
+      "tag": "0006_overjoyed_mister_sinister",
+      "breakpoints": true
     }
   ]
-}
+}