migrate time_slave detailed design to doxygen

[ryan-steel]

Description

Migrates the detailed design docs to doxygen to match process description guidelines which state that detailed design documentation belongs in code rather than separate design artifacts.

Related ticket

Part of #96

[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]
Extracting Bazel installation...
Starting local Bazel server (8.6.0) and connecting to it...
INFO: Invocation ID: cadb9a0a-a76d-4d22-94a7-7f68571ebee0
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
WARNING: For repository 'platforms', the root module requires module version platforms@1.0.0, but got platforms@1.1.0 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: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Loading: 
Loading: 3 packages loaded
Analyzing: target //:license-check (4 packages loaded, 0 targets configured)
Analyzing: target //:license-check (4 packages loaded, 0 targets configured)

Analyzing: target //:license-check (74 packages loaded, 10 targets configured)

Analyzing: target //:license-check (137 packages loaded, 496 targets configured)

Analyzing: target //:license-check (160 packages loaded, 3877 targets configured)

Analyzing: target //:license-check (161 packages loaded, 6279 targets configured)

Analyzing: target //:license-check (170 packages loaded, 9392 targets configured)

Analyzing: target //:license-check (172 packages loaded, 9417 targets configured)

Analyzing: target //:license-check (172 packages loaded, 9417 targets configured)

Analyzing: target //:license-check (172 packages loaded, 9417 targets configured)

Analyzing: target //:license-check (175 packages loaded, 11305 targets configured)

Analyzing: target //:license-check (176 packages loaded, 11429 targets configured)

INFO: Analyzed target //:license-check (177 packages loaded, 11555 targets configured).
[1 / 1] no actions running
INFO: From Generating Dash formatted dependency file ...:
INFO: Successfully converted 2 packages from Cargo.lock to bazel-out/k8-fastbuild/bin/formatted.txt
[14 / 16] [Prepa] JavaToolchainCompileBootClasspath external/rules_java+/toolchains/platformclasspath.jar
INFO: Found 1 target...
Target //:license.check.license_check up-to-date:
  bazel-bin/license.check.license_check
  bazel-bin/license.check.license_check.jar
INFO: Elapsed time: 30.372s, Critical Path: 2.51s
INFO: 16 processes: 12 internal, 3 processwrapper-sandbox, 1 worker.
INFO: Build completed successfully, 16 total actions
INFO: Running command line: bazel-bin/license.check.license_check ./formatted.txt <args omitted>
usage: org.eclipse.dash.licenses.cli.Main [-batch <int>] [-cd <url>]
       [-confidence <int>] [-ef <url>] [-excludeSources <sources>] [-help] [-lic
       <url>] [-project <shortname>] [-repo <url>] [-review] [-summary <file>]
       [-timeout <seconds>] [-token <token>]