Select text inside tables (#33) - #39

…text

Table matches are counted with the same matcher over the same characters
the table view shows (the measurer's TableText string, or a plain string
from the same builder helpers), so count == highlights, in reading order;
markup and link URLs are no longer counted. Highlight through
applyNSSearchHighlight (moved to DocumentSearch.swift for headless tests).
The 1.12 bridge and the dead SwiftUI highlight path are removed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhzVb6aPQs2FF1bHdkcYys

… no rebuild per pass

- FullWidthTextTable: whole-point columns that sum to the full width (the
  remainder 1 pt each to the first columns), so the header band and rules
  reach the outline (NSTextTable floored every column: up to n-1 pt short).
- TableText.Source carries theme name, dark/light and document fonts;
  matches(theme:fontScale:) rejects an instance built for another look.
- The representable builds or adopts a TableText only when its source
  changes; the background colour is compared by value.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhzVb6aPQs2FF1bHdkcYys

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhzVb6aPQs2FF1bHdkcYys

Tables are no longer atomic in the document selection: the controller asks
the row's text view for the character under the pointer (cell-confined in
tables), multi-click selects a word or the cell, and copy builds the covered
text of one cell, or TSV of the covered cells (partial first/last cell), or
the 1.12 TSV for a whole table. Per-row selection rules moved to a pure
SelectionRows.swift so they are unit-tested; Source Edit hint lands on the
table's line.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhzVb6aPQs2FF1bHdkcYys

searchMatchRanges returned ranges in the lowercased copy's coordinates;
"İ" lowercases to two UTF-16 units, so every later highlight of a row (a
whole table) shifted by one. When the lowercased length differs, search
the original string with .caseInsensitive; otherwise unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhzVb6aPQs2FF1bHdkcYys

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhzVb6aPQs2FF1bHdkcYys

- multi-click on text rows is exactly the pre-v1.13 glyph rule; the cell
  rule compares against the glyph's composed character range (emoji, ZWJ)
- Source Edit hint inside one table band searches that band's source line
  only (repeated values in a column no longer land on another row)
- a single-cell copy drops the column's alignment as well as the text block

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhzVb6aPQs2FF1bHdkcYys

…selection

A table fills a background and borders per cell, and every fill computed
the rects of the WHOLE selection to cut its holes: quadratic. ⌘A ⌘C on a
200-row table took 7 s on first draw and grew the process to 3 GB (1.12:
0.35 s, 110 MB). `selectionRects(in:limitedTo:)` takes the fill's
character range and keeps the whole covered range as the selected range,
so line ends extend exactly as before; the limited rects add up to the
whole selection's (test).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhzVb6aPQs2FF1bHdkcYys

- hit-test: a table clamps the point into its view and asks the cell hook
  in every direction (TS-D6); text rows keep their edges
- whole-table copy reads the built cells (one source of truth, no second
  renderInline pass), 1.12 parity pinned on rich fixtures
- text rows are counted with searchMatchRanges, so count == highlights
- drop the unused 4-arg TableText.matches and TableTextLayout.bandRange;
  stale comments (tables are .exact, on-screen cells are AppKit)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhzVb6aPQs2FF1bHdkcYys

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BhzVb6aPQs2FF1bHdkcYys