.ai/EPS import: type keeps auto leading, hyphenation options and the file's last lines

- Auto leading stays auto: each line takes the paragraph's share (key 7)
  of the largest type on it. The leading was the first two lines'
  distance for every line, so 10 pt lines under a 15 pt heading came in
  18 pt apart.
- The paragraph's hyphenation options (keys 10 to 15) are read.
- Area type of one frame whose last lines the file sets, but which don't
  fit here (the fallback font, or a descent past the frame's bottom),
  gets a frame taller from its bottom (vectorcraft_text::fit_source_lines),
  with a warning.

A user's .ai whose type differed from its page by 6.6%, so that it opened
from its PDF part with each line its own text object, now opens from its
layers.

docs/file-format-parity.md

@@ -1,6 +1,6 @@
 # File format parity
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-06 · **Change:** minor (EPS and `.ai` editing data: a transparency set inside a clipping group stays after its `Q`; SVG import: filter and mask regions clip, #5876, #5875; SVG import: Gaussian blurs keep `color-interpolation-filters`, #5877; PDF and `.ai` export: objects' URLs as links, #5785; SVG import: `color-interpolation="linearRGB"` gradients, #5878; `.ai` import: paths with a Calligraphic brush open brushed, #372) · **Target:** Adobe Illustrator 2026 (30.x)
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-11-07 · **Change:** minor (`.ai` and EPS type from the text document keeps auto leading, hyphenation options and the file's last lines; EPS and `.ai` editing data: a transparency set inside a clipping group stays after its `Q`; SVG import: filter and mask regions clip, #5876, #5875; SVG import: Gaussian blurs keep `color-interpolation-filters`, #5877; PDF and `.ai` export: objects' URLs as links, #5785; SVG import: `color-interpolation="linearRGB"` gradients, #5878; `.ai` import: paths with a Calligraphic brush open brushed, #372) · **Target:** Adobe Illustrator 2026 (30.x)
 
 Every format Illustrator opens, places, saves or exports, against VectorCraft's format table (`FORMATS`,
 `OPEN_EXTS`, `PLACE_EXTS` in `crates/engine/src/cmd/fileio/formats.rs`). Illustrator's list comes from its public
@@ -49,6 +49,10 @@ private editing data. VectorCraft:
   clipped by a copy of the mask's path.
   An opacity mask's art of one shown object, other than a guide or a clipping path, opens as that object in the
   editing data of a `.ai`, EPS or PDF; other art opens in a group.
+  Type from the text document keeps auto leading as auto, each line taking the paragraph's share
+  (Auto Leading) of the largest type on it, and the paragraph's hyphenation options. Area type of one
+  frame whose last lines the file sets but which don't fit here (the fallback font, or a descent
+  past the frame's bottom) gets a frame taller from its bottom, with a warning.
   RGB in the PDF page's `ICCBased` spaces keeps the file's numbers in a `.ai` (the `uncalibrated_rgb`
   import option, on for editor documents, off for PDFs), so `.ai` files tagged with a non-sRGB RGB profile
   open with different, unconverted RGB colours than before.
@@ -212,6 +216,7 @@ the app's own editing copy of a file (an EPS after its `%%EOF`, a `.ai`'s `AIPri
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-11-07 | minor | EPS and `.ai` type from the text document: auto leading stays auto at the paragraph's share (it was the first two lines' distance for every line, so 10 pt lines under a 15 pt heading came in 18 pt apart), the paragraph's hyphenation options are read, and area type whose last lines the file sets in too short a frame for them here gets a taller frame. A user's `.ai` (used locally, not committed) whose type differed from its page by 6.6%, so that it opened from its PDF part, now opens from its layers (4.9%, the rest its Myriad Pro type in the fallback font). Scores and estimates unchanged. |
 | 2026-11-06 | minor | EPS and `.ai` editing data: `Q` restores the painting state but not the transparency (`Xy`), which the writer only sets when the next object's differs from the last one written. A Screen glow followed by a clipping group set back to Normal no longer leaves the type after the group in Screen: two users' Illustrator 26.5 and 30 EPS posters (used locally, not committed) now show their gold heading and crescent, and both open from their layers (2.5% and 2.7% from the page before, under the limit after). Scores and estimates unchanged. |
 | 2026-11-06 | minor | EPS and `.ai` editing data: a blend whose spine was never edited, written with its keys and no spine part, comes in as a live blend along the straight lines between its keys' centres (in its record's order) instead of as its drawn steps. Checked on six users' Illustrator EPS files (used locally, not committed): every blend in four of them now comes in live, their renders unchanged; two still have blends the reader can't match to their drawn steps. Scores and estimates unchanged. |
 | 2026-11-06 | minor | EPS and `.ai` editing data: the art styles are found before the art is read, so objects in symbols defined ahead of `%AI9_BeginArtStyles` (as Illustrator 24 writes it) come in as themselves with their style instead of their drawn look. Checked on two users' EPS files (used locally, not committed): one's Symbols panel gains live Feather and Round Corners, its drawn-look count drops from 5 to 2, and both render unchanged; own-fixture test in `import::ai::tests`; scores and hours unchanged |