Jakub Zych ddf1178c51 feat(sunrise): print the PATH hint for the user's login shell ...

- new.sh reads the basename of SHELL (via ${SHELL:-} under set -u) and
  prints fish_add_path "<dir>" for fish, which keeps it for new sessions,
  export PATH="<dir>:$PATH" naming ~/.zshrc or ~/.bashrc for zsh and
  bash, and today's generic export line with "your shell profile" for
  any other, empty or unset shell
- dq_escape escapes the install directory for the target shell's double
  quotes: backslash, double quote and dollar always, plus backtick and a
  single-quoted ! for POSIX shells; a per-character loop, so bash 3.2
  and 5.2 behave the same
- the behaviour harness defaults SHELL to empty so cases do not depend on
  the developer's login shell, adds an unset-SHELL mode and covers fish,
  zsh, bash, empty, unset, unknown and two metacharacter directories
- TestBootstrapEndToEnd pins SHELL=/bin/bash
- sunrise README and docs/setup/installation.md describe the per-shell
  hint; the manual PATH section gains fish_add_path (go env GOPATH)/bin

2026-10-08 15:34:42 +02:00

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