- Add prompts/user-preferences.md: visual-first communication preference
and communication style directives (moved from system_prompt.md).
- Inject user-preferences.md into all agent definitions.
- Replace all execute_code references with shell across docs, prompts,
and agent configs.
- Remove dead u/ and x/ entries from scripts/README.md.
- Remove SYSTEM_PROMPT_QWEN systemPrompt override from navigator.
- justfile: install user-preferences.md.
Shared agent/tool prompts and skills now live at the top level rather
than duplicated across frontends. Frontend-specific system prompts
remain in their respective dirs (kde/prompts/, dbus/prompts/).
- prompts/, skills/, tools/ removed from monorepo root
- 9p/: gains prompts/skills/tools with 9P filesystem API (unchanged)
- kde/: gains prompts/skills/tools rewritten for D-Bus API
- mkfile: data target no longer installs prompts/skills/tools
- 9p/mkfile: install target now includes data (prompts/skills/tools)
- kde/Makefile: all target now includes data (prompts/skills/tools)
- SYSTEM_PROMPT_QWEN and SYSTEM_PROMPT_DEVSTRAL updated in both
submodules to include the operational world model