T60: round 3 of its review passes

TASKS.md

@@ -154,7 +154,7 @@ Progress truth. Top to bottom, one at a time. A task is ticked only after its co
 
 - [x] T59 A plain click on the line typed at the shell prompt moves the cursor there, which a user asked for after 0.1.6, as Ghostty's `cursor-click-to-move`: while the shell's OSC 133 marks say it reads a line, a click that does not drag sends Left or Right arrows, one per character, to the clicked cell of the cursor's line, soft wraps joined; never on the alternate screen, under mouse tracking, with a selection, or before the prompt's end.
 - [x] T66 Files dropped on the terminal type their paths, which a user asked for after 0.1.6, as macOS Terminal does: each path quoted for the shell, joined by spaces, sent as a paste, on macOS, Windows and Linux.
-- [ ] T60 Fallback fonts, which a user asked for after 0.1.6: `font_fallbacks` in the settings, a list of installed families tried in order for a character Font family lacks, CJK among them; Settings › Appearance lists them under Font family, each an Ely `FontPicker` with a remove button, and an Add button; each saves only when gpui loads it.
+- [x] T60 Fallback fonts, which a user asked for after 0.1.6: `font_fallbacks` in the settings, a list of installed families tried in order for a character Font family lacks, CJK among them; Settings › Appearance lists them under Font family, each an Ely `FontPicker` with a remove button, and an Add button; each saves only when gpui loads it.
 - [ ] T61 On Windows the IME's candidate window stays at the cursor, which a user found jumping after 0.1.6: find why it moves, fix the cause, and log what the input handler tells the IME.
 - [ ] T62 Ely's body runs on below the edge she holds, which a user asked for after 0.1.6, where a hop lifted her off the window and left a gap under her collar: her shirt continues down, hidden behind the edge, so a hop shows more of her and never a gap.
 - [ ] T63 A double-click on a session's title renames it, which a user asked for after 0.1.6: the row's title turns into a field, Enter keeps the name, Escape drops it; the name shows in the row, the terminal's header and the window's title over the program's own until renamed again, and an empty name gives the title back to the program; it lives as long as the session.

tasks/reviews.md

@@ -307,3 +307,4 @@ Each task gets at most three codex rounds. Each round: the commit, the verdict,
 
 - Round 1, cb32f00: FAIL. On macOS the order, bold, italic, ligatures, icons, old files, refusals, add, change and cancel all held; but removing the row whose input held the focus left the removed family in it, and Enter saved it over the next family; and on Linux gpui's cosmic-text path carries the fallback a character took into the next while it covers it, so `क中` drew 中 in the second fallback. Fixed in 5f8ea89: a removal drops that row's input and the focus; the Linux path is gpui's, kept for its shaping clusters, and the owner chose to record it.
 - Round 2, 5f8ea89: FAIL. Round 1's removal case and removals first, middle, last, in sequence, then adds and cancels held, and the Linux record was true; but the pickers were keyed by place, so after a removal moved the inputs, the picker state of the second row, listening to the input now first, wrote PingFang SC into it at a blur, and Enter saved `[PingFang SC, PingFang SC]`. Fixed in 5d131e5: each picker is keyed by its input's entity.
+- Round 3, 5d131e5: PASS. Each picker keyed by its input kept round 2's case at `[Songti SC, PingFang SC]` through a removal, a focus cycle and Enter; drafts blurred after removals first, middle, last and among duplicates came back to the right family; a sequence of removals and adds through five focus cycles, and a cancel, re-add and removal through three, saved what the screen showed; a refused pick restored the saved list; check.sh passed with 262 tests. Windows and Linux windows went unexercised.