[dsaikou618]

Add per-person profile support so dotfiles and Claude config can be used by different people, not just Tri.

This adds:

• Profile resolution via env var or file
• Profile bootstrap from template
• Claude config overlay support ( / )
• Profile file linking (gitconfig.local, zshrc.local, nvim.lua, ghostty.conf, settings.local.json, CLAUDE.local.md)
• target to bootstrap and link everything

The directory (gitignored) holds per-person customizations that never reach the repository, keeping private data local.

[TriTacLe]

Reviewed and pushed fixes for three bugs that broke the multi-user goal:

• profiles/example/profile.env hardcoded DOTFILES_PROFILE="example". config.sh sources that file with set -a, so after the first bootstrap every later shell exports DOTFILES_PROFILE=example and locks onto the example profile instead of the real one. Dropped the line, since the selector has no business living inside the thing it selects.
• shared.zsh dropped the non-interactive unalias guard entirely, so any script or agent sourcing it would hit the interactive rm/mv/cp/cd/ls aliases. Restored it.
• the x alias got repointed at an undefined agy command (also a new agyy alias with no definition anywhere in the repo). Reverted both to claude.

Also dropped GIT_NAME/GIT_EMAIL from profile.env since nothing reads them, the real identity goes through gitconfig.local.

Not touched, worth a look before merge: the Ghostty shader files, Brewfile edits, zsh colorscheme default, and the STM32 nvim filetype removal are unrelated to the profiles feature and ride along in this diff.

[TriTacLe]

Follow-up: this branch is now 16 commits behind master and has a real merge conflict. Master's own #119 already fixed the same non-interactive-alias-guard bug independently, so it collides with the fix I pushed here. Conflicts also touch .gitconfig, Brewfile, config.sh, and .gitignore. Needs a rebase onto current master before this can merge, not just more edits on top.

Note: I pushed a commit (96c1c14) directly to this branch earlier fixing the three bugs described above, before realizing this PR is from a collaborator account rather than the repo owner's own branch. Flagging that in case it's unexpected - happy to have it reverted if you'd rather land your own fix.

[TriTacLe]

Closing in favour of a single re-cut branch. Full review is on #141.

This PR shares its two base commits (e7c5e231, 3b875287) with #140 and #141, so it carries the same four reverts against current master: the repo owner's git identity replaced with yours in .gitconfig, the NTNU gitconfig and git.ntnu.no credential helper removed, the STM32 main.c[1-6] filetype mapping deleted from options.lua, and stow-pkg claude-config reverted. It also conflicts with master (mergeable_state: dirty).

The profiles feature is worth having and the implementation is sound. It needs a branch cut from current master with only the profile files in it. #141 lists exactly what that should contain.

Your unique commit here, 96c1c142 "close profile self-poisoning loop, restore non-interactive alias guard", is not in #140 or #141. Please carry it into the re-cut.

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