feat(node): default SQLite settings

[pratyush618]

What

Match the Python SDK's queue-init defaults in the Node SDK.

• SQLite default — new Queue() now opens .taskito/taskito.db (was: required dbPath/dsn). Missing parent dirs are created automatically, like Python's os.makedirs. :memory: skipped.
• Postgres/Redis — require an explicit dsn, else throw. schema (Postgres, default "taskito") and prefix (Redis) pass through unchanged for per-backend namespacing; both user-overridable.
• Constructor arg now optional (new Queue()).

Why

Parity with Python (db_path=".taskito/taskito.db", schema="taskito"). Zero-config local start; users override path/schema/prefix later.

Tests

sdks/node/test/core/open.test.ts — default path + dir creation, nested-dir creation, dsn-required for non-sqlite. tsc + biome clean. Pure TS, no native rebuild.

Summary by CodeRabbit

Release Notes

• New Features
  • Queue can now be instantiated with no arguments, defaulting to SQLite at .taskito/taskito.db
  • SQLite now automatically creates missing parent directories for the database file
• Bug Fixes
  • Postgres and Redis backends now explicitly error if a DSN is not provided
• Documentation
  • Backend docs were updated with clearer defaults and state-isolation semantics (SQLite/Postgres/Redis)
• Tests
  • Added/expanded coverage for default construction and required DSN behavior

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: b47f5bac-d021-42b1-aac4-a02a0324b3af

📥 Commits

Reviewing files that changed from the base of the PR and between 837174d and 010b2a0.

📒 Files selected for processing (1)

• sdks/node/test/core/errors.test.ts

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📝 Walkthrough

Walkthrough

The Queue constructor now accepts no arguments by defaulting to {}. When using the SQLite backend, the DSN defaults to .taskito/taskito.db and missing parent directories are created via mkdirSync. Postgres and Redis backends now throw a QueueError if no DSN is provided. New tests and README examples reflect these behaviors.

Changes

Queue Default SQLite Configuration

Layer / File(s)	Summary
Queue constructor default and toOpenOptions/ensureSqliteParentDir logic sdks/node/src/queue.ts	Adds mkdirSync/dirname imports, defaults constructor parameter to {}, updates dbPath JSDoc, replaces toOpenOptions logic to default to SQLite at .taskito/taskito.db, calls ensureSqliteParentDir for on-disk paths, and throws QueueError when DSN is absent for postgres/redis backends.
Tests and README documentation sdks/node/test/core/open.test.ts, sdks/node/test/core/errors.test.ts, sdks/node/README.md	Adds a Vitest suite validating default SQLite construction, nested dbPath parent-directory creation, and DSN-required error for non-SQLite backends; updates errors test to expect postgres-without-dsn to throw; README backends section updated with no-arg Queue example, directory-creation note, and isolation semantics for each backend.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐇 Hippity-hop, no args to pass,
SQLite appears out of thin air at last!
.taskito/taskito.db — it's the default call,
mkdirSync digs the burrow, no stumble or fall.
Postgres needs a DSN or the rabbit won't play,
Defaults and dirs — a tidy warren today! 🗂️

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'feat(node): default SQLite settings' directly and clearly summarizes the main change: making SQLite settings default in the Node SDK, allowing zero-config initialization with new Queue().
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/node-default-sqlite-path

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