shell: starship + shared aliases for bash and zsh

- .chezmoidata/aliases.yaml: single source for shell-agnostic aliases
- fish 20-aliases.fish -> .tmpl rendered from that data (fish-only
  bits: clipboard detection, q function, interactive eza)
- dot_config/shell/aliases.sh.tmpl: same data for bash/zsh
- dot_bashrc/dot_zshrc: managed rc files with starship init
  (replaces unmanaged flyline/p10k prompts), guarded cargo/atuin/envman

dot_config/fish/conf.d/20-aliases.fish

@@ -1,66 +0,0 @@
-# Aliases
-
-# Editors / file managers
-alias e nvim
-alias e.d 'cd ~/.config/dotstate/storage/Rogz/.config && yazi'
-alias e.f 'cd ~/.config/fish && yazi '
-alias e.k 'yazi ~/.config/kitty'
-alias e.n 'yazi ~/.config/niri'
-alias e.v 'yazi ~/.config/nvim/lua'
-alias e.y 'yazi ~/.config/yazi'
-alias e.t 'nvim ~/.config/tmux/tmux.conf'
-
-alias hx 'helix'
-
-# Quick directory jumps
-alias cdc 'cd ~/.config && yazi'
-alias cdd 'cd ~/Developer && yazi'
-alias cdk 'cd ~/Documents/Knowledge && obsidian'
-alias cdl 'cd ~/.local && yazi'
-alias cds 'cd ~/.local/share/services && ls'
-alias cdw 'cd ~/Downloads && yazi'
-
-# Tools
-alias dd lazydocker
-alias gg lazygit
-alias ff 'exec fish'
-alias npx bunx
-if command -v wl-copy >/dev/null 2>&1
-    alias cpy wl-copy
-    alias pst wl-paste
-else if command -v pbcopy >/dev/null 2>&1
-    alias cpy pbcopy
-    alias pst pbpaste
-end
-alias sm 'sudo micro'
-# q exits the shell; if this shell was spawned from yazi's own `q` bind
-# (`shell "$SHELL" --block`), also tell that yazi to quit so exiting
-# doesn't bounce back into the file manager.
-function q --description 'exit (and quit parent yazi)'
-    if set -q YAZI_ID; and command -q ya
-        ya emit quit 2>/dev/null
-    end
-    exit
-end
-alias sd 'ssh prad@192.168.1.68'
-alias oc opencode
-alias gop 'gh repo view --web'
-alias dss 'dotstate sync'
-alias fabric fabric-ai
-alias bk bead-kanban
-
-alias sua 'shelly upgrade-all -n'
-
-alias lc 'leetcode'
-alias tk 'task'
-
-# Interactive-only: don't override `ls` for scripts.
-if status is-interactive
-    # `clear` is functions/clear.fish (kitty scrollback + bottom-pinned
-    # prompt) — don't alias it here, an alias would shadow the autoload.
-    alias celar clear
-    alias claer clear
-    if command -v eza >/dev/null 2>&1
-        alias ls 'eza --icons'
-    end
-end