feat(clients): professional clients with tests, CI/CD, and examples

- Python: pyproject.toml, pytest suite (unit + integration), README, examples
- JavaScript: package.json, TypeScript definitions, node:test suite, README, examples
- Nim: integration tests, examples, README, improved nimble tasks
- Rust: fixed nodelay/localhost IPv6 bug, integration tests, examples, README
- Added GitHub Actions CI for all 4 clients against Docker server
- Added docker-compose.test.yml for local integration testing
- Added .gitignore for each client

clients/python/pyproject.toml

@@ -0,0 +1,59 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "baradb"
+version = "1.0.0"
+description = "Official Python client for BaraDB — Multimodal Database Engine"
+readme = "README.md"
+license = { text = "Apache-2.0" }
+requires-python = ">=3.9"
+authors = [
+    { name = "BaraDB Team", email = "team@baradb.dev" },
+]
+keywords = ["database", "baradb", "multimodal", "client", "wire-protocol"]
+classifiers = [
+    "Development Status :: 4 - Beta",
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: Apache Software License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Topic :: Database",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Typing :: Typed",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.0",
+    "pytest-asyncio>=0.21.0",
+    "mypy>=1.0",
+    "ruff>=0.1.0",
+]
+
+[project.urls]
+Homepage = "https://github.com/barabadb/baradadb"
+Documentation = "https://docs.baradb.dev"
+Repository = "https://github.com/barabadb/baradadb.git"
+Issues = "https://github.com/barabadb/baradadb/issues"
+
+[tool.hatch.build.targets.wheel]
+packages = ["baradb"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = ["."]
+
+[tool.mypy]
+strict = true
+warn_return_any = true
+warn_unused_configs = true
+
+[tool.ruff]
+line-length = 100
+select = ["E", "F", "I", "W"]