refactor(claude): rename cc → ccc to avoid shadowing /usr/bin/cc

[fx]

The persistent-tmux Claude launcher was named cc, which shadows the system C compiler (/usr/bin/cc) in interactive shells. Rename the bash function and fish function to ccc.

• dot_bash_aliases: cc() → ccc() (+ internal re-exec)
• fish config: function cc → function ccc (+ delegation to bash ccc)

Pairs with an infra-repo change pointing the Coder Claude Code tile at bash -ic ccc.

[Copilot]

Pull request overview

Renames the persistent Claude tmux launcher from cc to ccc in both Bash and Fish shell configurations to avoid shadowing the system C compiler (/usr/bin/cc). Comments are updated accordingly, including internal re-exec calls (bash -ic cc → bash -ic ccc) used for the root → UID 1000 delegation path.

Changes:

• Rename Bash function cc() → ccc() and update internal re-exec to bash -ic ccc.
• Rename Fish function cc → ccc and update root delegation to exec bash -ic ccc.
• Update inline comments to reference ccc and document the rationale (shadowing /usr/bin/cc).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
dot_bash_aliases	Renames function and internal re-exec to ccc; updates explanatory comments.
dot_config/fish/config.fish.tmpl	Renames Fish function and root delegation invocation to ccc; updates comments.