Take the card's tap back off the words, and let the words still be selected

Verified on the emulator with all three gestures on an opened peer message:
a tap on its words shuts it, a press held past the long-press timeout
selects from them, and the tap that puts that selection away does only
that. The earlier note in TODO.md saying markdown inside these cards could
not be selected was a coordinate error on my part -- the presses were
landing in the card's bottom padding, below the last line -- and it is
removed rather than carried forward.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

TODO.md

@@ -13,11 +13,6 @@ one in place when it turns out to need a decision.
       (`AiAppSelectionColors`), which took the fill from #5B4C73 to #776394 on
       that surface. Worth confirming this was the complaint rather than a
       selection that draws *nothing* on the phone.
-- [ ] Text inside an opened peer message or memory note cannot be selected at
-      all — the heading of the same card can, and so can a tool call's output,
-      so it is the markdown text specifically. Pre-existing (measured against
-      the build before this session's changes, by stashing them). It
-      contradicts AGENTS.md's "all transcript text is selectable".
 - [ ] Messages received from other agents are inconsistent — sometimes they
       appear, sometimes they don't. **Needs a rig.** Read the code rather than
       measured: a live Claude session only learns of a peer message from the