chore: update dotfiles with new tool configs and pi settings

- Add configs for goose, herdr, ostt, fabric, zero, gnupg
- Restructure pi models.json (dupont, obelix, bianca, cloudflare)
- Update pi settings with new provider lineup, subagent overrides
- Add pi permission system, search config
- Add desktop entries (RampClient, terminal, tmux)
- Add tmux-open script, rename battery.sh -> battery
- Refactor fish config (simplify conditionals, fix nvim aliases)
- Switch worktrunk commit command from opencode to pi
- Update mise.toml with new tool symlinks
- Fix mise auth.json path reference

config/herdr/config.toml

@@ -0,0 +1,15 @@
+onboarding = false
+[ui]
+show_agent_labels_on_pane_borders = true
+pane_gaps = false
+pane_borders = true
+
+[experimental]
+pane_history = true
+
+[theme]
+name = "gruvbox"
+auto_switch = false
+
+[keys]
+prefix = "ctrl+space"