Adopt mise for development workflows

- Lock Python and uv versions with mise
- Add unified sync, app, test, lint, format, and typecheck tasks
- Update development documentation and strengthen type handling

mise.toml

@@ -0,0 +1,42 @@
+[tools]
+python = "3.13"
+uv = "0.12"
+
+[settings]
+lockfile = true
+
+[tool_config]
+locked = true
+
+[tasks.sync]
+description = "Synchronize project dependencies"
+run = "uv sync"
+
+[tasks.app]
+description = "Run the hosts application"
+run = "uv run hosts"
+
+[tasks.test]
+description = "Run the test suite"
+run = "uv run pytest"
+raw = true
+
+[tasks.lint]
+description = "Check code with Ruff"
+run = "uv run ruff check ."
+
+[tasks.format]
+description = "Format code with Ruff"
+run = "uv run ruff format ."
+
+[tasks.format-check]
+description = "Check formatting with Ruff"
+run = "uv run ruff format --check ."
+
+[tasks.typecheck]
+description = "Type-check the project with ty"
+run = "uv run ty check"
+
+[tasks.check]
+description = "Run the complete validation suite"
+depends = ["test", "lint", "format-check", "typecheck"]