* initial commit of aces-amf-lib

Signed-off-by: Chris Clark <chrisc@netflix.com>

* accept string paths in addition to Path objects

Signed-off-by: Chris Clark <chrisc@netflix.com>

* restructure as monorepo and migrate to xsdata-pydantic

- Move aces-amf-lib into packages/ directory
- Add root pyproject.toml with uv workspace config
- Create skeleton packages for aces-amf-transforms and aces-amf-utils
- Regenerate schema bindings with xsdata-pydantic (BaseModel instead of dataclasses)
- Update uri_codec.py, amf_utilities.py, aces_amf.py for Pydantic model API
- Add amf_xml_date_time() helper for XmlDateTime construction
- Fix test fixtures for Pydantic required-fields-at-construction semantics

* implement validation plugin system with registry and core validators

- Add protocols.py with AMFValidator and TransformRegistry protocols
- Create validation/ package with plugin registry supporting entry points
  and explicit registration
- Extract monolithic semantic_validation.py into 9 focused validators:
  temporal, uuid, cdl, metadata, applied_order, file_paths,
  working_space, transform_ids, file_hashes
- Add validate_schema(), validate_semantic(), validate_all() convenience functions
- Core validators auto-register on import via get_default_registry()
- Unified ValidationMessage/ValidationType/ValidationLevel types
- Backward compat: validate_amf alias, SemanticValidationType alias
- Remove old validation.py and semantic_validation.py modules
- Update all tests and examples for new API (45 tests passing)

* add test fixtures as package data

- Copy AMF example files into fixtures/amf-examples/ as package data
- Add fixtures module with get_amf_examples_path() and list_amf_examples()
- Update conftest.py and tests to use package fixtures instead of symlink
- Remove old tests/data/aces-examples symlink
- Update pyproject.toml to include fixture files in package data

* build aces-amf-transforms package with bundled registry

- Implement ACESTransformRegistry with bundled ACES transforms snapshot
  (164 v2.0.0 transforms + 993 v1.3.1 + 7 more version sets)
- Support lookup by ID, previous equivalent IDs, category, and inverse
- Create TransformIdValidator that validates IDs against the registry
- Register validator via aces_amf.validators entry point
- Strip transformUrl from snapshot to reduce size (~1.8MB)
- 15 tests covering registry lookup, listing, and validator integration

* add root .gitignore and remove cached build artifacts

* rewrite public API with auto-validation and remove legacy modules

- Replace aces_amf.py wrapper with functional API in amf_utilities.py
  (load_amf, save_amf, render_amf, minimal_amf, prepare_for_write)
- Add validate=True kwarg to load/save/render for automatic semantic
  validation on all AMF I/O operations
- Add AMFValidationError exception for structured error reporting
- Remove uri_codec.py and backward-compat aliases (validate_amf,
  SemanticValidationType, SemanticValidationMessage)
- Overhaul all 9 semantic validators for improved coverage
- Add nested sub-transform validation (_nested.py)
- Add v1 test fixture and v1→v2 upgrade tests
- Expand test suite to 70 tests

* update transform validator and registry for new validation API

- Adapt validator to work with updated validation types and registry
- Use validate=False in tests for intentionally invalid AMF data
- Remove empty tests/__init__.py
- 16 tests passing

* build out aces-amf-utils with CLI, builder, diff, and templates

- AMFBuilder: fluent builder pattern for AMF construction
- diff.py: structural comparison between AMF objects
- template_registry.py: pre-built AMF templates for common workflows
- bulk_generator.py: generate AMF files from templates for multiple assets
- Click CLI with commands: validate, info, create, convert, diff, edit,
  transforms (entry point: amf)
- 55 tests covering builder, CLI, diff, and template registry

* add xsdata binding generation script

Shell script to regenerate xsdata-pydantic bindings from XSD schemas.
Supports generating v1, v2, or both: ./generate_bindings.sh [v1|v2]

* support compound workingLocation/lookTransform field with ordering preservation

Merge the separate working_location and look_transform fields on PipelineType
into a single compound working_location_or_look_transform list that preserves
element interleaving. The working location is a positional delimiter in the
AMF pipeline — looks before vs after it have different semantic meaning.

- Post-generation patch in generate_bindings.sh merges the two fields into a
  compound field with proper xsdata Elements metadata (v2 only, v1 unaffected)
- Add look_transforms read-only property for filtered access
- Add WorkingLocationType alias for EmptyType (removed EmptyType from public API)
- Add MULTIPLE_WORKING_LOCATIONS validation (ERROR if >1 per pipeline)
- Update v1-to-v2 upgrade to rename lookTransform key for compound field
- Add AMFBuilder.working_location() method for inserting the delimiter
- Update all field references across 3 packages
- Add 11 new tests including interleaved ordering, roundtrip, and validation

* add URI encoding/decoding for xs:anyURI file paths

xsdata passes percent-encoded values through unchanged, creating an
interop risk with other AMF implementations. Add a generic Pydantic
tree walker that auto-decodes file paths on load (unquote) and
re-encodes on save (quote with safe='/'), using a deep copy to avoid
mutating the user's model. Covers all 10 types with file fields
across both pipeline and archived pipeline structures.

* close v1→v2 migration gaps for systemVersion and ColorCorrectionRef

Legacy v1 files that omit systemVersion now parse successfully instead
of failing with a confusing error. The v1 model patches system_version
to optional via generate_bindings.sh, and the upgrade function injects
a default of 1.3.0.

Also adds semantic validation that ColorCorrectionRef must be
accompanied by a file element in v2, emitting a warning when missing.

* Ensure the lock file points external

* regenerate uv.lock with standard PyPI index

Add regenerate_lock.sh script and rebuild uv.lock pointing
to pypi.org/simple instead of internal mirror.

---------

Signed-off-by: Chris Clark <chrisc@netflix.com>
Co-authored-by: Chris Clark <chrisc@netflix.com>