Initial import of LogDarioSeq baseline

Establishes version control for the personal Logseq DB fork before
starting the server-client architecture migration and domain features
described in docs/agent-guide and the approved implementation plan.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

deps/db-sync/worker/scripts/delete_user_totally.test.js

@@ -0,0 +1,59 @@
+const assert = require("node:assert/strict");
+const { spawnSync } = require("node:child_process");
+const path = require("node:path");
+const test = require("node:test");
+
+const { isDeleteConfirmationAccepted, parseCliArgs } = require("./delete_user_totally");
+const { defaultConfigPath } = require("./graph_user_lib");
+
+function runCli(args) {
+  return spawnSync(process.execPath, [path.join(__dirname, "delete_user_totally.js"), ...args], {
+    encoding: "utf8",
+  });
+}
+
+test("parseCliArgs accepts --username", () => {
+  const parsed = parseCliArgs(["--username", "alice"]);
+
+  assert.equal(parsed.lookupField, "username");
+  assert.equal(parsed.lookupLabel, "username");
+  assert.equal(parsed.lookupValue, "alice");
+  assert.equal(parsed.env, "prod");
+  assert.equal(parsed.database, "DB");
+  assert.equal(parsed.config, path.resolve(defaultConfigPath));
+});
+
+test("parseCliArgs accepts --user-id", () => {
+  const parsed = parseCliArgs(["--user-id", "user-123"]);
+
+  assert.equal(parsed.lookupField, "id");
+  assert.equal(parsed.lookupLabel, "user-id");
+  assert.equal(parsed.lookupValue, "user-123");
+});
+
+test("CLI --help exits successfully", () => {
+  const result = runCli(["--help"]);
+
+  assert.equal(result.status, 0);
+  assert.match(result.stdout, /Delete a db-sync user and all related data/);
+});
+
+test("CLI rejects passing both --username and --user-id", () => {
+  const result = runCli(["--username", "alice", "--user-id", "user-123"]);
+
+  assert.equal(result.status, 1);
+  assert.match(result.stderr, /Pass exactly one of --username or --user-id\./);
+});
+
+test("confirmation accepts DELETE", () => {
+  assert.equal(isDeleteConfirmationAccepted("DELETE", "user-123"), true);
+});
+
+test("confirmation accepts legacy DELETE USER <id>", () => {
+  assert.equal(isDeleteConfirmationAccepted("DELETE USER user-123", "user-123"), true);
+});
+
+test("confirmation rejects unrelated input", () => {
+  assert.equal(isDeleteConfirmationAccepted("DELETE USER other-user", "user-123"), false);
+  assert.equal(isDeleteConfirmationAccepted("yes", "user-123"), false);
+});