feat: convert tmux monitoring into a plugin (B10)

src/backend/database/db/index.ts

@@ -1950,79 +1950,6 @@ const migrateSchema = () => {
     }
   }
 
-  // --- tmux-monitor begin ---
-  try {
-    sqlite.prepare("SELECT id FROM tmux_session_tags LIMIT 1").get();
-  } catch {
-    try {
-      sqlite.exec(`
-        CREATE TABLE IF NOT EXISTS tmux_session_tags (
-          id INTEGER PRIMARY KEY AUTOINCREMENT,
-          user_id TEXT NOT NULL,
-          host_id INTEGER NOT NULL,
-          session_name TEXT NOT NULL,
-          tag TEXT NOT NULL,
-          created_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
-        );
-      `);
-    } catch (createError) {
-      databaseLogger.warn("Failed to create tmux_session_tags table", {
-        operation: "schema_migration",
-        error: createError,
-      });
-    }
-  }
-
-  // Rebuild pre-release tables created without the host FK so deleting a
-  // host cascades to its tags (SQLite cannot add a FK via ALTER TABLE).
-  try {
-    const tagFks = sqlite
-      .prepare("PRAGMA foreign_key_list(tmux_session_tags)")
-      .all() as Array<{ table: string; from: string }>;
-    const hasHostFk = tagFks.some(
-      (fk) => fk.from === "host_id" && fk.table === "ssh_data",
-    );
-    if (!hasHostFk) {
-      sqlite.exec(`
-        BEGIN;
-        CREATE TABLE tmux_session_tags_new (
-          id INTEGER PRIMARY KEY AUTOINCREMENT,
-          user_id TEXT NOT NULL,
-          host_id INTEGER NOT NULL,
-          session_name TEXT NOT NULL,
-          tag TEXT NOT NULL,
-          created_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
-        );
-        INSERT INTO tmux_session_tags_new (id, user_id, host_id, session_name, tag, created_at)
-          SELECT id, user_id, host_id, session_name, tag, created_at
-          FROM tmux_session_tags
-          WHERE user_id IN (SELECT id FROM users)
-            AND host_id IN (SELECT id FROM ssh_data);
-        DROP TABLE tmux_session_tags;
-        ALTER TABLE tmux_session_tags_new RENAME TO tmux_session_tags;
-        COMMIT;
-      `);
-      databaseLogger.info("Rebuilt tmux_session_tags with host FK", {
-        operation: "schema_migration",
-      });
-    }
-  } catch (rebuildError) {
-    try {
-      sqlite.exec("ROLLBACK;");
-    } catch {
-      // no transaction open
-    }
-    databaseLogger.warn("Failed to add host FK to tmux_session_tags", {
-      operation: "schema_migration",
-      error: rebuildError,
-    });
-  }
-  // --- tmux-monitor end ---
-
   try {
     const existingRoles = sqlite.prepare("SELECT name, is_system FROM roles").all() as Array<{ name: string; is_system: number }>;
 

src/backend/database/db/schema.mysql.ts

@@ -1204,23 +1204,6 @@ export const termixIdentityCa = mysqlTable("termix_identity_ca", {
 });
 // --- termix-id end ---
 
-// --- tmux-monitor begin ---
-export const tmuxSessionTags = mysqlTable("tmux_session_tags", {
-  id: int("id").autoincrement().primaryKey(),
-  userId: varchar("user_id", { length: 255 })
-    .notNull()
-    .references(() => users.id, { onDelete: "cascade" }),
-  hostId: int("host_id")
-    .notNull()
-    .references(() => hosts.id, { onDelete: "cascade" }),
-  sessionName: text("session_name").notNull(),
-  tag: text("tag").notNull(),
-  createdAt: varchar("created_at", { length: 255 })
-    .notNull()
-    .default(sql`(CURRENT_TIMESTAMP)`),
-});
-// --- tmux-monitor end ---
-
 // --- metrics-history begin ---
 export const hostMetricsHistory = mysqlTable("host_metrics_history", {
   id: int("id").autoincrement().primaryKey(),

src/backend/database/db/schema.pg.ts

@@ -1205,23 +1205,6 @@ export const termixIdentityCa = pgTable("termix_identity_ca", {
 });
 // --- termix-id end ---
 
-// --- tmux-monitor begin ---
-export const tmuxSessionTags = pgTable("tmux_session_tags", {
-  id: serial("id").primaryKey(),
-  userId: varchar("user_id", { length: 255 })
-    .notNull()
-    .references(() => users.id, { onDelete: "cascade" }),
-  hostId: integer("host_id")
-    .notNull()
-    .references(() => hosts.id, { onDelete: "cascade" }),
-  sessionName: text("session_name").notNull(),
-  tag: text("tag").notNull(),
-  createdAt: varchar("created_at", { length: 255 })
-    .notNull()
-    .default(sql`CURRENT_TIMESTAMP`),
-});
-// --- tmux-monitor end ---
-
 // --- metrics-history begin ---
 export const hostMetricsHistory = pgTable("host_metrics_history", {
   id: serial("id").primaryKey(),

src/backend/database/db/schema.ts

@@ -1203,23 +1203,6 @@ export const termixIdentityCa = sqliteTable("termix_identity_ca", {
 });
 // --- termix-id end ---
 
-// --- tmux-monitor begin ---
-export const tmuxSessionTags = sqliteTable("tmux_session_tags", {
-  id: integer("id").primaryKey({ autoIncrement: true }),
-  userId: text("user_id")
-    .notNull()
-    .references(() => users.id, { onDelete: "cascade" }),
-  hostId: integer("host_id")
-    .notNull()
-    .references(() => hosts.id, { onDelete: "cascade" }),
-  sessionName: text("session_name").notNull(),
-  tag: text("tag").notNull(),
-  createdAt: text("created_at")
-    .notNull()
-    .default(sql`CURRENT_TIMESTAMP`),
-});
-// --- tmux-monitor end ---
-
 // --- metrics-history begin ---
 export const hostMetricsHistory = sqliteTable("host_metrics_history", {
   id: integer("id").primaryKey({ autoIncrement: true }),