Bonsai: keep newlines and multiple spaces in SVG schedules (#5123)

The schedule SVG builder extracted cell text with `str(p)` on each odfpy
paragraph. `str()` concatenates only raw character data and silently drops
ODF whitespace/line-break child elements (`<text:s>` which encodes runs of
two or more spaces, `<text:tab>`, `<text:line-break>`), so multi-space runs
and in-paragraph newlines disappeared from the rendered schedule.

Use `odf.teletype.extractText`, which expands those elements into real
characters, and split the result on newlines so each in-paragraph line
break becomes its own SVG line. Also set `xml:space="preserve"` on the SVG
root, otherwise renderers collapse the now-preserved runs of spaces back to
one.

Verified live in headless Blender with the real Scheduler().schedule():
a cell "CODE<3 spaces>INFO" now renders "CODE   INFO" (was "CODEINFO"), and
"FIRST<line-break>SECOND" renders as two lines (was "FIRSTSECOND").

Generated with the assistance of an AI coding tool.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/bonsai/bonsai/bim/module/drawing/scheduler.py

@@ -30,6 +30,7 @@ from odf.opendocument import load as load_ods
 from odf.style import Style
 from odf.table import Table, TableCell, TableColumn, TableRow
 from odf.text import P
+from odf.teletype import extractText
 
 import bonsai.tool as tool
 from bonsai.bim.module.drawing.svgwriter import SvgWriter
@@ -63,6 +64,9 @@ class Scheduler:
             debug=False,
             id="root",
         )
+        # Preserve runs of whitespace inside cells; without this SVG renderers
+        # collapse multiple spaces (e.g. from ODF `<text:s>`) down to one.
+        self.svg.attribs["xml:space"] = "preserve"
         self.padding = 1
         self.margin = 1
 
@@ -548,7 +552,14 @@ class Scheduler:
         :param wrap_text: if True, text will be wrapped to fit in cell
         :param cell_width: width of cell, used for wrapping text
         """
-        text_lines = [str(p) for p in p_tags]
+        # `str(p)` only concatenates raw character data and silently drops
+        # ODF whitespace/line-break elements (`<text:s>`, `<text:tab>`,
+        # `<text:line-break>`), so runs of spaces and in-paragraph newlines were
+        # lost. `extractText` expands those into real characters; splitting on
+        # the resulting newlines turns each line break into its own SVG line.
+        text_lines = []
+        for p in p_tags:
+            text_lines.extend(extractText(p).split("\n"))
         box_alignment_params = SvgWriter.get_box_alignment_parameters(box_alignment)
         text_params = {"font-size": font_size}
         if bold: