docs: the signal badges, the signal pages and the six-badge overflow (step 2 of the redesign)

Also wrap the signals page's hint line, which at 375 px minimum widened the whole slide-over panel to 376.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/claude/verification.md

@@ -447,6 +447,11 @@ precedent, not an exception.
   read `click_inside_closes=0 still_open=1 click_outside_closes=1 esc_closes=1 closed=1`. For a screenshot
   add `UDPSCOPE_PROBE_SLIDEOVER_HOLD=1`, which leaves the page open after line 1 (run with `GSK_RENDERER=cairo`
   and `import -window root`): the panel must be drawn over the traces, opaque.
+- **Slide-over and page probes (`SLIDEOVER`, `BADGES`, `SIGNAL_PAGES`, `SIGNAL_BADGES`) need a config that has already seen
+  the first-run tour**: a fresh `XDG_CONFIG_HOME` auto-starts the tour at about 1.5 s, and a tour stop with no page closes the
+  slide-over under the probe. Seed it with `mkdir -p $D/udpscope && printf 'tour_seen = true\n' > $D/udpscope/settings.toml`
+  (or one short throw-away run, which writes the key when the tour starts) and run with `XDG_CONFIG_HOME=$D`. Delete the
+  per-source subdirectory (`$D/udpscope/<host>_<port>`) between runs that must start from a first-run layout.
 - `UDPSCOPE_PROBE_SIGNAL_PAGES_MS=1500` with `UDPSCOPE_EXIT_AFTER_MS=5000` and `UDPSCOPE_ENABLE_ALL_MS=500` -- the
   per-signal `signal:<name>` slide-over pages. **Against a config that has already seen the tour** (a first run's
   auto-tour closes the slide-over at about 1.5 s, which is when this probe opens its page). One `[signalpage]` line;