docs: update README build and profiling instructions to use Bazel

[MohamedRady-99]

This PR resolves the issue with outdated README documentation by updating the build and profiling instructions to use Bazel instead of Cargo #70.

Since cargo build is no longer supported in this repository, and some previously referenced examples (like hello_tracing) do not have Bazel targets, the documentation has been rewritten to ensure all commands are fully functional with the current build system.

Proposal:

Currently, the documentation instructs users to build and profile using cargo and unsupported targets. This PR updates the workflow as follows:

1. Update Build Instructions: Remove mentions of cargo build in the Rust setup section, pointing users exclusively to bazel.
2. Fix CPU Profiling (Samply): Replace the unsupported hello_tracing example with the working mini-adas target (//examples/rust/mini-adas:adas_primary_com_iox2_direct_unix) and update the binary execution paths to use bazel-bin/.
3. Fix Memory Profiling (Bytehound): Change the LD_PRELOAD recording commands to execute the Bazel-built mini-adas binary instead of the old Cargo target/debug/ paths, and update the expected output .dat filenames in the analysis section.

Thanks!

[github-actions]

License Check Results

🚀 The license check job ran with the Bazel command:

bazel run //:license-check

Status: ⚠️ Needs Review

Click to expand output

[License Check Output]
2026/06/15 11:09:01 Downloading https://github.com/aspect-build/aspect-cli/releases/download/5.9.36/bazel-5.9.36-linux-x86_64...
2026/06/15 11:09:02 Downloading https://releases.bazel.build/8.3.0/release/bazel-8.3.0-linux-x86_64...
Starting local Bazel server (8.3.0) and connecting to it...
INFO: Invocation ID: 687fd377-19f0-459a-955e-8faf2fc44749
Computing main repo mapping: 
Computing main repo mapping: 
DEBUG: Rule 'rules_boost+' indicated that a canonical reproducible form can be obtained by modifying arguments integrity = "sha256-LTilyiMMjpYyAi1PW+8RycyAEHy9clo7915R0Bchb2E="
DEBUG: Repository rules_boost+ instantiated at:
  <builtin>: in <toplevel>
Repository rule http_archive defined at:
  /home/runner/.bazel/external/bazel_tools/tools/build_defs/repo/http.bzl:394:31: in <toplevel>
Computing main repo mapping: 
Computing main repo mapping: 
WARNING: For repository 'score_bazel_platforms', the root module requires module version score_bazel_platforms@0.1.1, but got score_bazel_platforms@0.1.2 in the resolved dependency graph. Please update the version in your MODULE.bazel or set --check_direct_dependencies=off
WARNING: For repository 'googletest', the root module requires module version googletest@1.17.0, but got googletest@1.17.0.bcr.2 in the resolved dependency graph. Please update the version in your MODULE.bazel or set --check_direct_dependencies=off
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Loading: 
Loading: 4 packages loaded
Loading: 4 packages loaded
    currently loading: 
WARNING: Target pattern parsing failed.
ERROR: Skipping '//:license-check': no such target '//:license-check': target 'license-check' not declared in package '' defined by /home/runner/work/feo/feo/BUILD
ERROR: no such target '//:license-check': target 'license-check' not declared in package '' defined by /home/runner/work/feo/feo/BUILD
INFO: Elapsed time: 9.172s
INFO: 0 processes.
ERROR: Build did NOT complete successfully
ERROR: Build failed. Not running target

[github-actions]

The created documentation from the pull request is available at: docu-html