feat: move the terminal fully into the ssh-terminal plugin (B9)

plugins/ssh-terminal/migrations/postgres/0001_adopt_command_history.sql

@@ -0,0 +1,14 @@
+-- ssh-terminal 0001: adopt_command_history
+-- Generated by termix-plugin migrations. Review before committing.
+
+CREATE TABLE IF NOT EXISTS "command_history" (
+  "id" serial PRIMARY KEY,
+  "user_id" varchar(255) NOT NULL,
+  "host_id" integer NOT NULL,
+  "command" text NOT NULL,
+  "executed_at" text NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY ("user_id") REFERENCES "users" ("id") ON DELETE CASCADE,
+  FOREIGN KEY ("host_id") REFERENCES "ssh_data" ("id") ON DELETE CASCADE
+);
+CREATE INDEX IF NOT EXISTS "idx_command_history_user_host" ON "command_history" ("user_id", "host_id");
+ALTER TABLE "command_history" RENAME TO "p_ssh_terminal_command_history";