refactor(config): migrate multi-category files and config.fish to named sites

Adds multi-site `# COMPONENT` headers and converts every guard call site in
conf.d/tricks.fish, conf.d/abbr.fish, functions/smart_exit.fish,
conf.d/yay-wrapper.fish, conf.d/paru-wrapper.fish, conf.d/wakatime.fish,
conf.d/first_run.fish, and config.fish (9 sites across 3 categories) to the
self-identifying `(status current-function|basename) <site>` calling
convention. Regenerates conf.d/__fish_config_op_registry.fish.

conf.d/paru-wrapper.fish

@@ -6,12 +6,16 @@
 # bars are preserved, renders the captured animation to a clean static log
 # (via scripts/clean_progress_log.py), and prunes old logs.
 
+# COMPONENT
+#   site paru-autoexec: autoexec/pkg-wrappers
+#   site paru-logging: logging/pkg-logs
+
 # Auto-generating a wrapper in ~/.local/bin is opinionated (C2 auto-exec).
 # Wrapper generation is also gated by C5 (Logging & Capture).
-__fish_config_op_enabled __fish_config_op_autoexec; or return
+__fish_config_op_enabled (status basename) paru-autoexec; or return
 
 # C5 — Logging & Capture: remove generated wrapper and skip when logging is off
-if not __fish_config_op_enabled __fish_config_op_logging
+if not __fish_config_op_enabled (status basename) paru-logging
     if test -f "$HOME/.local/bin/paru"
         and grep -q "# paru-wrapper-version:" "$HOME/.local/bin/paru" 2>/dev/null
         rm -f "$HOME/.local/bin/paru"