refactor: use __fish_palette in agents and auto-pull functions

34 duplicated declarations replaced by 5 calls. Output strings untouched;
byte-identical across 29 harness cases.

functions/_agents_init_ensure_gitignore.fish

@@ -31,8 +31,7 @@
 # EXAMPLE
 #   _agents_init_ensure_gitignore /home/user/myproject "agents-init" "AGENTS/" "/AGENTS.md"
 function _agents_init_ensure_gitignore
-    set -l c_ok    (set_color green)
-    set -l c_reset (set_color normal)
+    __fish_palette
 
     if test (count $argv) -lt 3
         echo (set_color red)"_agents_init_ensure_gitignore: requires <root> <label> <pattern>..."(set_color normal) >&2

functions/agents-init.fish

@@ -85,14 +85,7 @@
 #   agents-init --plugins
 #   agents-init --quiet
 function agents-init --description 'scaffold AGENTS/ sub-repo with agent spec files and plugin dirs'
-    set -l c_head (set_color --bold cyan)
-    set -l c_cmd (set_color --bold)
-    set -l c_flag (set_color yellow)
-    set -l c_ok (set_color green)
-    set -l c_warn (set_color yellow)
-    set -l c_dim (set_color brblack)
-    set -l c_err (set_color red)
-    set -l c_reset (set_color normal)
+    __fish_palette
 
     argparse h/help a/agents p/plugins v/verbose q/quiet s/silent -- $argv
     or return 1

functions/agents-vault.fish

@@ -186,14 +186,7 @@
 #   throwaway directory and leave a dangling symlink behind, which is
 #   strictly worse than having had no backup at all.
 function agents-vault --description 'track curated agent memory in a host-scoped vault repo'
-    set -l c_head (set_color --bold cyan)
-    set -l c_cmd (set_color --bold)
-    set -l c_flag (set_color yellow)
-    set -l c_ok (set_color green)
-    set -l c_warn (set_color yellow)
-    set -l c_err (set_color red)
-    set -l c_dim (set_color brblack)
-    set -l c_reset (set_color normal)
+    __fish_palette
 
     argparse h/help link push restore status 'adopt=' 'remote=' \
         v/verbose q/quiet s/silent -- $argv

functions/auto-pull.fish

@@ -42,14 +42,7 @@
 #   auto-pull list
 #   auto-pull remove qmk_firmware
 function auto-pull --description 'Manage the auto-pull repository registry'
-    set -l c_head (set_color --bold cyan)
-    set -l c_cmd (set_color --bold)
-    set -l c_flag (set_color yellow)
-    set -l c_ok (set_color green)
-    set -l c_warn (set_color yellow)
-    set -l c_err (set_color red)
-    set -l c_dim (set_color brblack)
-    set -l c_reset (set_color normal)
+    __fish_palette
 
     set -q __fish_config_dir; or set -l __fish_config_dir $XDG_CONFIG_HOME/fish
     set -q __fish_user_dots_path; or set -l __fish_user_dots_path "$XDG_CONFIG_HOME/.user-dots/fish"

functions/config-update.fish

@@ -27,14 +27,7 @@
 #   config-update --dry-run
 #   config-update --force
 function config-update --description 'Pull latest fish config from upstream'
-    set -l c_head  (set_color --bold cyan)
-    set -l c_cmd   (set_color --bold)
-    set -l c_flag  (set_color yellow)
-    set -l c_ok    (set_color green)
-    set -l c_warn  (set_color yellow)
-    set -l c_err   (set_color red)
-    set -l c_dim   (set_color brblack)
-    set -l c_reset (set_color normal)
+    __fish_palette
 
     set -l REMOTE_URL https://git.rootiest.dev/rootiest/fish-config.git
     set -l CONFIG_DIR ~/.config/fish