feat(api)!: the two enum lists are spans over the tables

[andiwand]

🤖 Generated with Claude Code

What

all_file_types() and all_text_encodings() allocated a std::vector on every call to project one column out of a constexpr table. Every other table lookup in odr.hpp returns a std::span<const …>, so these two were the outliers.

• Each table projects its enum column at compile time (file_type_table::types(), text_encoding_table::encodings()).
• The two public lookups return std::span<const …> and are noexcept.
• python copies the span into a list, because pybind11 has no caster for a span. apple reads the span. jni and wasm iterate and need no change.
• The test compares with std::ranges::equal, since a span has no operator==.

Breaking for a C++ consumer that binds the result to a std::vector. Lands in v7.0.0 with the other API breaks; a changelog entry is included.

Checks

• odr_test: the table and encoding suites pass.
• jni JUnit, python pytest, the wasm node suite and the apple XCTest suite pass locally.
• The touched translation units compile clean under Homebrew clang with -Wall -Wextra -Werror.

https://claude.ai/code/session_01QNQ2GtyAXXWGvnKBtwTEhQ