Add experimental ARM64 runtime support

[kernalix7]

Summary

• Add experimental ARM64 runtime patchers for termwrap, umwrap, and endpwrap.
• Add ARM64 patch discovery helpers, bytecodes, offset-finder reporting, and ARM64 build/static CI coverage.
• Fix installer --force reinstall replacement behavior and prepare v0.2.0 release metadata/docs.

Verification

• cargo fmt --check
• cargo test
• cargo clippy --all-targets -- -D warnings
• cargo deny check
• cargo about generate about.txt.hbs -o /tmp/rdprrap-third-party-licenses-check.txt
• git diff --check
• Markdown link check for README, changelog, contributing, security, testing docs, and bug report template

Notes

• ARM64 runtime support remains experimental until real Windows ARM64 DebugView patch logs and concurrent-session smoke tests pass.
• License review found no new copied third-party ARM code; existing source attributions remain unchanged.