repo/sqlite: add base schema

src/repo/sqlite/migrations/202208162308.sql

@@ -2,3 +2,24 @@ CREATE TABLE _tas_info (
   version     INTEGER     PRIMARY KEY
 );
 
+CREATE TABLE tasks (
+  id          INTEGER     PRIMARY KEY,
+  name        TEXT        NOT NULL,
+  group       TEXT        NULL,
+  link        TEXT        NULL,
+  path        TEXT        NULL,
+
+  current     BOOLEAN     NOT NULL DEFAULT false,
+
+  created_at  DATETIME    NOT NULL DEFAULT datetime('now'),
+  finished_at DATETIME    NULL
+);
+
+CREATE VIEW active_tasks AS (
+  SELECT *
+  FROM tasks
+  WHERE finished_at IS NULL
+  ORDER BY created_at
+);
+
+