Add queries to read pending actions.

migrations/01_init.sql

@@ -1,14 +1,14 @@
 PRAGMA foreign_keys = ON;
 
-CREATE TABLE IF NOT EXISTS global_actions (
+CREATE TABLE IF NOT EXISTS global_action (
        name TEXT NOT NULL PRIMARY KEY,
-       last_finished INTEGER DEFAULT 0 NOT NULL
+       next_run INTEGER DEFAULT 0 NOT NULL
 );
 
-CREATE TABLE IF NOT EXISTS local_actions (
+CREATE TABLE IF NOT EXISTS local_action (
        jail_name TEXT NOT NULL,
        tree TEXT NOT NULL,
        set_name TEXT NOT NULL,
-       last_finished INTEGER DEFAULT 0 NOT NULL,
+       next_run INTEGER DEFAULT 0 NOT NULL,
        PRIMARY KEY (jail_name, tree, set_name)
 );