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

src/backend/database/db/index.ts

@@ -419,15 +419,8 @@ async function initializeCompleteDatabase(): Promise<void> {
         FOREIGN KEY (host_id) REFERENCES ssh_data (id) ON DELETE CASCADE
     );
 
-    CREATE TABLE IF NOT EXISTS command_history (
-        id INTEGER PRIMARY KEY AUTOINCREMENT,
-        user_id TEXT 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
-    );
+    -- command_history is owned by the ssh-terminal plugin, which adopts it
+    -- as p_ssh_terminal_command_history in its first migration.
 
     CREATE TABLE IF NOT EXISTS host_access (
         id INTEGER PRIMARY KEY AUTOINCREMENT,
@@ -858,35 +851,8 @@ async function initializeCompleteDatabase(): Promise<void> {
 
 `);
 
-  try {
-    const timeoutRow = sqlite
-      .prepare(
-        "SELECT value FROM settings WHERE key = 'terminal_session_timeout_minutes'",
-      )
-      .get() as { value: string } | undefined;
-    const timeoutMinutes = timeoutRow
-      ? parseInt(timeoutRow.value, 10)
-      : 30;
-    const ttlMs =
-      !isNaN(timeoutMinutes) && timeoutMinutes > 0
-        ? timeoutMinutes * 60_000
-        : 30 * 60_000;
-    const cutoff = new Date(Date.now() - ttlMs).toISOString();
-    const result = sqlite
-      .prepare("DELETE FROM user_open_tabs WHERE updated_at <= ?")
-      .run(cutoff);
-    if (result.changes > 0) {
-      databaseLogger.info("Expired open tabs cleared on startup", {
-        operation: "db_init_open_tabs_cleanup",
-        count: result.changes,
-      });
-    }
-  } catch (e) {
-    databaseLogger.warn("Could not clear expired open tabs on startup", {
-      operation: "db_init_open_tabs_cleanup_failed",
-      error: e,
-    });
-  }
+  // Expired open tabs are dropped when the tab list is read, against the
+  // terminal plugin's own session timeout.
 
   try {
     const result = sqlite

src/backend/database/db/performance-indexes.ts

@@ -105,14 +105,9 @@ export const PERFORMANCE_INDEXES: PerformanceIndex[] = [
     table: "recent_activity",
     columns: "user_id, timestamp",
   },
-  {
-    name: "idx_command_history_user_host",
-    table: "command_history",
-    columns: "user_id, host_id",
-  },
-  // file_manager_recent, file_manager_pinned, file_manager_shortcuts and
-  // transfer_recent are owned by the file-manager plugin now; its adopted
-  // table definitions carry these same indexes across the rename.
+  // file_manager_recent, file_manager_pinned, file_manager_shortcuts,
+  // transfer_recent and command_history are owned by plugins now; their
+  // adopted table definitions carry these same indexes across the rename.
   {
     name: "idx_user_open_tabs_user_id",
     table: "user_open_tabs",

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

@@ -515,26 +515,6 @@ export const recentActivity = mysqlTable(
   ],
 );
 
-export const commandHistory = mysqlTable(
-  "command_history",
-  {
-    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" }),
-    command: text("command").notNull(),
-    executedAt: text("executed_at")
-      .notNull()
-      .default(sql`(CURRENT_TIMESTAMP)`),
-  },
-  (table) => [
-    index("idx_command_history_user_host").on(table.userId, table.hostId),
-  ],
-);
-
 export const hostAccess = mysqlTable(
   "host_access",
   {

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

@@ -516,26 +516,6 @@ export const recentActivity = pgTable(
   ],
 );
 
-export const commandHistory = pgTable(
-  "command_history",
-  {
-    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" }),
-    command: text("command").notNull(),
-    executedAt: text("executed_at")
-      .notNull()
-      .default(sql`CURRENT_TIMESTAMP`),
-  },
-  (table) => [
-    index("idx_command_history_user_host").on(table.userId, table.hostId),
-  ],
-);
-
 export const hostAccess = pgTable(
   "host_access",
   {

src/backend/database/db/schema.ts

@@ -508,26 +508,6 @@ export const recentActivity = sqliteTable(
   ],
 );
 
-export const commandHistory = sqliteTable(
-  "command_history",
-  {
-    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" }),
-    command: text("command").notNull(),
-    executedAt: text("executed_at")
-      .notNull()
-      .default(sql`CURRENT_TIMESTAMP`),
-  },
-  (table) => [
-    index("idx_command_history_user_host").on(table.userId, table.hostId),
-  ],
-);
-
 export const hostAccess = sqliteTable(
   "host_access",
   {