chore(release): prepare for v0.3.1

build(cpython): bump to v3.14.3

chore(release): prepare for v0.3.0

docs(readme): add comprehensive documentation

fix(module/env): reset command hash after PATH modification

chore(gitignore): ignore build config variants

style: remove backticks for better readability

build: delete 32-bit-support.patch

feat(module/customize): improve user-friendly messages

feat(module/customize): validate HOME from env.sh

fix(build): handle missing NDK gracefully

build: remove unnecessary libraries from distribution

feat(build): add `rm_if` option to debloat patterns

fix: bundle CA certificates for HTTPS support

feat(module/customize): install pip by default