docs: fix broken APIs, wrong imports, and inaccurate compatibility info

[Copilot]

Documentation contained multiple broken code examples (non-existent modules, wrong method names, incorrect include paths) and factually wrong compatibility tables. Users following the docs would get import errors, compiler errors, or incorrect behavior.

Broken Python API references

• Replaced all references to non-existent struct_frame_parser module with actual frame_profiles imports across framing.mdx, framing-details.mdx, python-sdk.md, language-examples.mdx
• Fixed msg.pack() → msg.serialize(), from_bytes() → deserialize(), to_bytes() → serialize()
• Removed non-existent create_custom_profile() and get_profile(Profile.SENSOR) — replaced with actual ProfileConfig/ProfileSensorWriter/ProfileSensorAccumulatingReader API
• Fixed import paths: from generated.frame_profiles import ... → from frame_profiles import ..., from generated.example import ... → from struct_frame.generated.example import ...
• Fixed import array_test_sf → from struct_frame.generated.array_test import ...

Broken C++ references

• FrameProfiles.hpp → frame_profiles.hpp (actual filename, case-sensitive on Linux) — fixed in 5 files
• using namespace StructFrame → using namespace FrameParsers
• SDK: StructFrame::SDK → StructFrame::StructFrameSdk; fixed subscribe() to require msgId param; removed non-existent process_byte()
• Transport includes: struct_frame_sdk/transports/serial.hpp → struct_frame_sdk/serial_transport.hpp

Wrong C++ standard

• C++14/C++17 → C++20 throughout (installation.md, quick-start.md, testing.md, README.md) — the boilerplate uses requires expressions which require C++20

Inaccurate feature matrix (README)

• C# was marked ✗ across all features despite being fully supported with generated framing, serialization, enums, arrays, and nested messages

Other

• Broken docs/framing.md links → live docs URL
• TypeScript SDK folder: struct_frame_sdk/ → struct-frame-sdk/ (hyphens match actual generated output)
• CLI reference: added missing --validate and --debug flags

Original prompt

go through the documentation and validate that it is complete, clear, concise and easy to follow

---

📱 Kick off Copilot coding agent tasks wherever you are with GitHub Mobile, available on iOS and Android.

[rijesha]

@copilot do another pass to address the places that you have missed