Fix: Text-Highlights (GlyphRange) in annotierten PDFs sichtbar machen

- merge-annotations.py: rmscene GlyphRange-Blöcke auslesen und als SVG-Rects rendern
- Koordinaten: rmscene screen-px × 72/226 → SVG-Punkte (identisch mit rmc-Skalierung)
- Farben: fill='rgb(...)' + fill-opacity statt rgba() (Inkscape-Kompatibilität)
- Highlights werden VOR Stift-Annotationen eingefügt (korrekte Z-Order)
- Dockerfile: rmscene==0.6.1 (rmrl+rmscene>=0.7.0 waren inkompatibel mit rmc)

remarkable/Dockerfile

@@ -9,7 +9,7 @@ RUN apt-get update && apt-get install -y \
     && rm -rf /var/lib/apt/lists/*
 
 # rmc + Farb-Patch
-RUN pip3 install "rmc==0.3.0" "rmscene>=0.7.0" "pypdf" "rmrl" --break-system-packages --ignore-installed packaging \
+RUN pip3 install "rmc==0.3.0" "rmscene==0.6.1" "pypdf" --break-system-packages --ignore-installed packaging \
     && python3 - <<'EOF'
 import pathlib
 import rmc.exporters.writing_tools as m

remarkable/scripts/merge-annotations.py

@@ -94,6 +94,46 @@ for i in range(n_pages):
         inner_m = re.search(r'<svg[^>]*>(.*)</svg>', svg, re.DOTALL)
         inner = inner_m.group(1) if inner_m else ''
 
+        # GlyphRange-Highlights (Textmarkierungen) aus .rm lesen
+        highlight_svg = ''
+        try:
+            import rmscene
+            RM_SCALE = 72.0 / 226  # rmscene screen-px → SVG-Punkte (wie rmc)
+            HIGHLIGHT_COLORS = {
+                9: ('rgb(255,235,0)', 0.4),    # HIGHLIGHT (gelb)
+                3: ('rgb(251,247,25)', 0.4),   # YELLOW
+                4: ('rgb(0,255,0)', 0.4),      # GREEN
+                5: ('rgb(255,192,203)', 0.4),  # PINK
+                6: ('rgb(78,105,201)', 0.4),   # BLUE
+                7: ('rgb(179,62,57)', 0.4),    # RED
+            }
+            with open(page_rm[i], 'rb') as rmf:
+                blocks = list(rmscene.read_blocks(rmf))
+            for block in blocks:
+                if not (hasattr(block, 'item') and hasattr(block.item, 'value')):
+                    continue
+                glyph = block.item.value
+                if not hasattr(glyph, 'rectangles'):
+                    continue
+                try:
+                    color_id = int(glyph.color)
+                except Exception:
+                    color_id = 9
+                fill, opacity = HIGHLIGHT_COLORS.get(color_id, ('rgb(255,235,0)', 0.4))
+                for rect in glyph.rectangles:
+                    highlight_svg += (
+                        f'<rect x="{rect.x * RM_SCALE:.3f}" y="{rect.y * RM_SCALE:.3f}" '
+                        f'width="{rect.w * RM_SCALE:.3f}" height="{rect.h * RM_SCALE:.3f}" '
+                        f'fill="{fill}" fill-opacity="{opacity}" stroke="none"/>\n'
+                    )
+        except Exception as e:
+            print(f'  GlyphRange Fehler: {e}', flush=True)
+
+        # Highlights VOR den Stift-Annotationen einblenden
+        if highlight_svg:
+            print(f'  {highlight_svg.count("<rect")} GlyphRect(s) für Seite {i+1}', flush=True)
+        inner = highlight_svg + inner
+
         # Annotation-Koordinaten sind in PDF-Punkten
         # Skalierung: PDF-Punkte -> PNG-Pixel
         pts_to_px = png_w / pdf_w_pt