Establish a reproducible computer engineering learning log

[devkyato]

Summary

• repair the three original C++ files, which contained literal escaped newlines and were not compilable source
• organize the examples with a portable CMake build, strict warnings, and observable-output tests
• add an honest Term 1 reflection, journal template, fundamentals notes, project criteria, and roadmap
• clearly distinguish completed evidence, in-progress reflection, and planned subjects
• add Linux/Windows CI, contribution and issue templates, and deterministic milestone snapshots

Local verification

• all three examples compiled with MinGW g++ using C++17, -Wall -Wextra -Wpedantic -Werror
• all outputs matched the documented results
• python tools/build_release.py produced and validated the v0.1.0 snapshot
• git diff --check passed

Scope

This remains a personal learning journal, not a production library and not a claim of completed roadmap topics.