* feat: unconditionally inject --format flag for all shortcuts
Removes three HasFormat guards in runner.go so every shortcut
gets --format regardless of the Shortcut.HasFormat field value.
Shortcuts that already define a custom 'format' flag in Flags[]
are skipped to avoid redefinition panics (e.g. mail +triage, +watch).
HasFormat is retained in the struct but marked deprecated.
Change-Id: I5e8fe07e839d5aed4cefaf7d753dabbaee68fb6e
* test: isolate config dir in format-universal test
Change-Id: I3a59942aa8a6753cd949ca42f2a19a72f032ff55
* test: revert unnecessary config-dir isolation (mount-only test)
Change-Id: I0146e5a2f57f5419863bdeeaa1a662fd8f70bddf