Complete migration: process_*, route, subagent_*, env, grep,
image_read, gui_*, browser_screencap, denote_view.
Every tool script now self-documents its usage. BuildRuntime
automatically extracts and injects these into the system prompt.
Replace Makefile/mkfile with justfile (just command runner).
Move tools from kde/tools to root (uses physical paths, not 9P).
Add process_*, env, grep tools that were missing from submodules.
just: 9P path (default), just dbus: D-Bus path.