Adds .gradle/, local.properties, and **/jniLibs/**/*.so to the
ignore list. The jniLibs .so files (600 KB - 950 KB per ABI) are
produced by the cargoBuildRust Gradle task wrapping cargo-ndk;
they are regenerated on every build and must not be tracked.
Required by the next commit (the Android audio spike) which
otherwise would try to track those four prebuilt libraries.
Imports the v0.9.2 documentation baseline and the bootstrap files
required by docs/governance/repository-bootstrap-plan.md v0.1.0 §3,
minus the justfile (added in the next commit).
This commit establishes the git history for the project. All previous
work lived only as filesystem state with no version control.
EdisonJwa