chore(release): prepare v0.1.1

[chaliy]

Summary

• Bump version from 0.1.0 to 0.1.1
• Update CHANGELOG.md with 30 PRs merged since v0.1.0

Highlights

• Network commands: curl/wget now support timeout flags (--max-time, --timeout)
• Parser improvements: $LINENO variable and line numbers in error messages
• jq enhanced: new flags (-S, -s, -e, --tab, -j, -c, -n)
• sed: in-place editing with -i flag
• Structured logging with automatic security redaction

Test plan

• cargo fmt --check passes
• cargo clippy passes
• cargo test --all-features passes

After merge, CI will automatically create GitHub Release and publish to crates.io.