docs(roadmap): correct what a watch gets today

Ring and timer notifications are ongoing, which Wear OS doesn't bridge,
and bridging needs Google's Wear OS app anyway. Quote the privacy policy
exactly, drop the unchecked "only channel" claim, and list bridging the
ring as an option of its own.

Refs #27

docs/ROADMAP.md

@@ -618,18 +618,24 @@ Deferred deliberately, in rough priority order:
 - **Migrate Calendula and Agendula onto `core-prefs` + `core-di`**: tracked in
   the kit's roadmap, not here.
 - **Wear OS companion** ([#27](https://codeberg.org/jlmakiola/clockula/issues/27)):
-  unscoped, and blocked on one constraint. A companion that shows and controls
+  unscoped. The part the issue describes, a watch that shows and controls the
-  the phone's timers and next alarm needs a phone-to-watch channel, and the only
+  phone's timers and next alarm, needs a phone-to-watch channel. The usual one
-  practical one is Google Play Services' Wearable Data Layer
+  is Google Play Services' Wearable Data Layer (`play-services-wearable`), a
-  (`play-services-wearable`). That is a proprietary third-party service, so it
+  proprietary service that `docs/PRIVACY.md` ("no analytics, tracking,
-  would break `PRIVACY.md`'s "no third-party service of any kind" and the
+  advertising, crash-reporting SDK or third-party service of any kind") and the
-  F-Droid build. What already works without it: ring, timer and snooze
+  F-Droid build rule out. Other channels (a Bluetooth link of our own through
-  notifications are bridged to a paired watch by the system, so the wrist
+  `CompanionDeviceManager`) haven't been looked into.
-  already gets the ring and its actions. The options, if this is ever picked up:
+  Today a watch gets little: ring and timer notifications are ongoing, which
+  Wear OS doesn't bridge by default, and bridging itself goes through Google's
+  Wear OS app on the phone, so a degoogled phone gets none of it. Only the
+  "Snoozed until" notification reaches a watch on a Google phone. The options,
+  if this is picked up:
   - **Standalone watch app**: its own timers, stopwatch and alarms on the watch,
-    no Play Services and no sync. Fits the privacy promise but does not control
+    no Play Services and no sync. Not blocked by anything; it just doesn't
-    the phone.
+    control the phone.
   - **Play-only companion**: the Data Layer confined to a Play Store flavour, so
     F-Droid builds stay free. It means two flavours with different features and
     a privacy policy that has to describe the difference.
-  - **Leave it**: rely on the bridged notifications and do nothing more.
+  - **Bridge the ring**: let the ring and timer notifications reach a watch
+    (not ongoing, or a separate bridged notification), keeping in mind that a
+    dismiss challenge makes Dismiss open the phone's ring screen.