automated snapshot

db/schema.sql

@@ -0,0 +1,12 @@
+CREATE TABLE snapshots (
+  id                INTEGER PRIMARY KEY,  -- 64-bit snowflake
+  sid               TEXT NOT NULL UNIQUE, -- base62 encoded id
+  created_at        INTEGER NOT NULL,
+	branch            TEXT NOT NULL,
+  git_hash          TEXT NOT NULL,
+	committed         BOOL NOT NULL,
+  path              TEXT NOT NULL
+);
+
+CREATE UNIQUE INDEX idx_snapshots_sid ON snapshots(sid);
+