Add logjet export as a sharedlib

[isbm]

To C/C++ fellas: take it nice and easy! 😉

[Copilot]

Pull request overview

Adds a new Rust cdylib (liblogjet) exposing a small C ABI for exporting OTLP logs, plus a C++ demo that loads the shared library and sends logs into ljd. Also enhances ljx view to display OTLP resource/record attributes in the modal info view (with styling) and adds tests around attribute listing.

Changes:

• Introduce liblogjet crate with C ABI (HTTP + gRPC OTLP exporters) and a public C header.
• Add a C++ shared-library demo (script + config + sample logger) to exercise the FFI flow end-to-end.
• Update ljx view modal info to enumerate OTLP attributes and visually distinguish “standard” vs custom attributes; add test coverage.

Reviewed changes

Copilot reviewed 11 out of 13 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
ljx/src/commands/view.rs	List OTLP attributes in the info modal, add formatting/styling helpers, add tests
liblogjet/src/lib.rs	New Rust cdylib providing C ABI to emit OTLP logs over HTTP/gRPC
liblogjet/include/liblogjet.h	Public C header for the FFI API
liblogjet/Cargo.toml	New crate manifest configuring cdylib build and deps
demo/cpp-shared-lib/run-demo.sh	Script to build/run the C++ demo and open ljx view
demo/cpp-shared-lib/ljd.conf	Demo config for file-backed ingestion via OTLP/gRPC
demo/cpp-shared-lib/liblogjet.so	Checked-in symlink/path intended to point at built shared object
demo/cpp-shared-lib/cpp-logger.cpp	C++ example that dlopens the library and emits logs
demo/cpp-shared-lib/README.md	Demo documentation/instructions
demo/README.md	Add demo entry point to the demo index
Cargo.toml	Add liblogjet to the workspace members

Comments suppressed due to low confidence (1)

demo/cpp-shared-lib/liblogjet.so:1

• This appears to be a committed symlink (or symlink-like file) pointing to an absolute, machine-specific path under /home/.... That will be invalid for other developers/CI. Since run-demo.sh already creates the symlink via ln -sf, it’s better to remove this from version control and add it to .gitignore, or commit a relative symlink target (e.g., ../../target/debug/libliblogjet.so) if you really want it present in the repo.

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