feat(ui): double-click-to-buy (AP-171, user-approved) + #353 toolbar text fixes — authored right-justify and two-line name wrap (Fable)

Double-clicking a vendor shop item now buys through the Buy button's
exact quantity/price path — retail has NO double-click-to-buy (the
named table sweep's negative evidence stands); the user chose the
addition explicitly and AP-171 records it.

#353 (pre-existing, user-reported): the stack-count entry is AUTHORED
HJustify=2 — right-justified flush against the slider on its own row —
and UiField already supported RightAligned; nobody had honored the
authored value. The name element is AUTHORED two lines tall (H=31,
W=140): long names now word-wrap at the authored pixel width onto a
second centered row via two stacked one-line labels reusing the
existing centered draw path (WrapNameTwoLines: greedy word break, no
hyphenation, second row clips like retail).

Ten SelectedObjectController structure tests updated from
single-label to first-label access. Lesson re-learned the hard way:
the first "green" run used a stale TEST assembly (only the App
project had been rebuilt) — the clean-room caught it, per
feedback_stale_build_artifacts. Full App 4,329/3 and Core 4,381/1
verified green on properly rebuilt assemblies; the one transient
Core Release failure did not reproduce and is noted on #351.

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

docs/ISSUES.md

@@ -24,6 +24,21 @@ What does NOT go here:
 - Every session: scan OPEN issues at start; promote/close anything we touched during the session before ending.
 - Promoting to a Phase: mark as `DONE (promoted to Phase X)` + commit SHA where the Phase entry landed.
 
+## #353 — Toolbar selected-object text: count field ignores authored HJustify; name field does not wrap to its authored two lines
+
+**Status:** FIXED 2026-08-08 pending the user's look (RightAligned on the authored HJustify=2 entry; two stacked centered one-line labels wrapping at the authored 140 px via WrapNameTwoLines).
+User gate findings (pre-existing, not vendor-introduced). The authored
+toolbar layout 0x21000016 is decisive: the stack-count entry 0x100001A3
+is X=0 Y=13 W=50 H=14 **HJustify=2 (right)** — flush against the slider
+0x100001A4 at X=50 Y=13 W=90 H=14, same row — but `UiField` has no
+justify support, so the number renders at the left edge (the user's
+screenshot). The name field 0x100001A2 is W=140 **H=31 (two lines)**;
+`UiField` already has WrappedLine machinery but the name widget renders
+one line, so long names overflow instead of breaking at the authored
+140 px. Fix: honor HJustify in UiField (right-justify the text run) and
+engage two-line wrap for the name element per its authored extent —
+wrap threshold is the authored PIXEL width, not a character count.
+
 ## #352 — Vendor range-watcher cylinder metric: discriminating unit test deferred
 
 **Status:** OPEN (filed 2026-08-08). The EnforceRange cylinder-gap fix