ours: наш оверлей к апстриму 1.5.1 (дельта для переноса в 1.6.0)

10 изменённых файлов + 2 новых (engineering/gost_titleblock.py, _fonts/isocpeur.ttf).
Ветка-донор для трёхстороннего переноса в ours-1.6.

backends/contracts/premium.py

@@ -615,11 +615,14 @@ class PremiumContract(ABC):
         style: DimStyle = "chain",
         offset: float = 10.0,
         layer: str | None = None,
+        layout: str | None = None,
     ) -> list[EntityInfo]:
         """Generate ISO 129 dimensions across `handles` in the chosen style
         (chain | baseline | ordinate). `offset` is the dimension-line
         distance from the reference geometry (mm). `layer` defaults to the
-        active layer set's dimension layer (DIM, or M-DIMEN-T-N for iso13567)."""
+        active layer set's dimension layer (DIM, or M-DIMEN-T-N for iso13567).
+        `layout` puts the dimensions on a named paper-space sheet instead of the
+        current space, so a sheet's dimensions live in paper millimetres."""
         if not handles:
             return []
         dim_layer = layer or self._role_layer("dim")
@@ -661,6 +664,7 @@ class PremiumContract(ABC):
                     my + ny * off,
                     rotation=math.degrees(math.atan2(dy, dx)),
                     layer=dim_layer,
+                    layout=layout,
                 )
                 results.append(dim)
 
@@ -682,6 +686,7 @@ class PremiumContract(ABC):
                     # baseline, not horizontal.
                     rotation=base_rot,
                     layer=dim_layer,
+                    layout=layout,
                 )
                 results.append(dim)
 
@@ -697,6 +702,7 @@ class PremiumContract(ABC):
                         sx + (ex - sx) / 2.0,
                         max(sy, ey) + rung,
                         layer=dim_layer,
+                        layout=layout,
                     )
                     results.append(dim)
                 if abs(ey - sy) > 1e-9:
@@ -709,6 +715,7 @@ class PremiumContract(ABC):
                         (sy + ey) / 2.0,
                         rotation=90.0,
                         layer=dim_layer,
+                        layout=layout,
                     )
                     results.append(dim)