Teach the launcher what an operating system knows

The OS-parity batch from the vicinae plan, tasks 1 through 7. The audit
came back better than the plan guessed: the calculator already links
libqalculate, the built-in file index answers in under 100ms across all
of home, quicklinks and snippets ship as built-in stores -- so zero new
packages, and `vicinae dmenu` replaces the planned compiled extension
outright. What was missing gets built: a power menu (lock, suspend, log
out through uwsm, restart, power off), reminders as transient systemd
timers with a pick-to-cancel list, a color picker over hyprpicker, and
dmenu pick-lists for window switching, force quit, kill process, SSH
hosts, and recent files -- all through one panama-pick helper. The
launcher commands contract exercises the reminder parsing and every
pick-list against stubs, including killing its own sacrificial sleep.

README.md

@@ -77,7 +77,7 @@ is what decides; anything not on it is a panel Panama owns itself.
 | `config/dot/hypr/` | Compositor config. **Lua, not hyprlang** — see its README |
 | `config/dot/quickshell/` | The shell: bar, dock, Continuum overview, Settings, Screen Intelligence, focus sessions, quick settings, notifications, screenshot UI |
 | `config/containers/` | Container definitions systemd runs as units — currently the speech-to-text server behind dictation |
-| `config/dot/vicinae/` | Raycast-style launcher, themed. Its commands live in `config/local/share/vicinae/` — script commands, and one compiled extension that adds web search with live suggestions |
+| `config/dot/vicinae/` | Raycast-style launcher, themed. Its commands live in `config/local/share/vicinae/` — script commands (settings deep links, power menu, reminders, window switcher, kill process, SSH hosts, recent files, color picker), and one compiled extension that adds web search with live suggestions. File search, calculator, clipboard, and emoji are Vicinae's own |
 | `config/dot/uwsm/` | Session environment (see the uwsm caveat in the hypr README) |
 | `config/dot/wofi/` | Fallback launcher, in case the shell fails to start |
 | `config/dot/xdg-desktop-portal/` | Portal backend routing |
@@ -113,7 +113,7 @@ docs/           Settings reference, and the design specs behind the work
 
 ## Tests
 
-133 of them, under `tests/`. Run the lot, or a subset by pattern:
+134 of them, under `tests/`. Run the lot, or a subset by pattern:
 
 ```sh
 panama test           # everything