`tom_som_python_v0` — runnable samples

Three runnable samples covering the three access paths to a TomSpecs Spec Object Model document (som_multiplatform_spec_model.md §6). They are hand-authored and preserved across generate_som regeneration (the generator only rewrites the module, meta/, schemas/ and pyproject.toml).

Each sample bootstraps sys.path from the runtime-path recorded in pyproject.toml, so it runs against the stock interpreter with no install. Run each from this package directory (tom_som_python_v0):

Sample	File	Access path	Run
(a) Typed object-model	a_typed_access.py	The generated typed facade — named properties, nested-section navigation, the typed SomList collection.	python3 examples/a_typed_access.py
(b) Generic document	b_generic_document.py	The language-independent generic runtime — string paths into a sparse store, plus JSON / YAML serialization.	python3 examples/b_generic_document.py
(c) Reflection / meta-data	c_reflection_metadata.py	The value-free reflection surface — load meta/spec_model.meta.json into a SpecModel , enumerate roots/fields, resolve paths to model nodes.	python3 examples/c_reflection_metadata.py

All three describe the same document shape, and produce output identical to their Dart counterparts in tom_som_dart_v0/example/ — illustrating that the typed facade (a) is a thin, type-safe surface over the exact generic store (b), whose schema is described by the reflection model (c).