feat: add TallyNote local reimbursement ledger

migrations/0002_update_jobs.sql

@@ -0,0 +1,19 @@
+CREATE TABLE IF NOT EXISTS update_jobs (
+  id TEXT PRIMARY KEY,
+  status TEXT NOT NULL CHECK(status IN ('queued','downloading','verifying','staged','backing_up','applying','completed','failed','cancelled')),
+  version TEXT NOT NULL,
+  platform TEXT NOT NULL,
+  release_url TEXT,
+  asset_name TEXT,
+  asset_url TEXT NOT NULL,
+  expected_sha256 TEXT,
+  actual_sha256 TEXT,
+  download_path TEXT,
+  backup_path TEXT,
+  size_bytes INTEGER,
+  error_message TEXT,
+  created_at INTEGER NOT NULL,
+  updated_at INTEGER NOT NULL,
+  completed_at INTEGER
+) STRICT;
+CREATE INDEX IF NOT EXISTS update_jobs_status_idx ON update_jobs(status, created_at);