fix: UTF-8 boundary panic and .gitignore without .git; bump to v1.6.1

ci: add persistent nix build verification workflow

ci: add one-off nix build verification workflow

fix(nix): set correct npmDepsHash for frontend derivation

fix: bump version to 1.6.0 in npm/package.json and DEPENDENCIES.txt

chore: prepare v1.6.0 release

feat: frontend routing, file explorer, and fix issues #13 + #14

fix(deps): update time to 0.3.47 to fix RUSTSEC-2026-0009

chore: prepare v1.5.0 release - version bump, docs, flake.nix improvements

feat(callgraph): scope-hint propagation for deterministic callee resolution

fix: resolve 8 graph analysis bugs found via Patina codebase testing

chore: bump version to 1.4.0 in flake.nix and npm/package.json

fix(deps): update bytes to 1.11.1 to fix RUSTSEC-2026-0007

feat: improve --graph flag UX with clear feedback when feature not compiled

chore: bump version to 1.3.1 for release