ocs_doc_api: Phase 5-ii — typed Table create

- CreateTable(TableSpec{insertion_point, data[row][col]}) op (append-only).
- backend add_table via Table::new(insertion_point, rows, cols) + set_cell_text
  (Table::default() pre-creates 3x3, so use Table::new for exact dims).
- executor validates non-empty rectangular grid; facade create_table.
- spec Table constructor; api_reference + binding_schema regenerated; mocks + baseline.
- Test phase5ii_create_table_from_grid (3x2 grid, non-rectangular rejected)
  -> 615 host lib + 3 consistency green. Phase 5 complete.

crates/ocs_doc_api/IMPLEMENTATION.md

@@ -107,10 +107,11 @@ Phase 2b (annotations/hatch/dimension typed ops), attributes + nested traversal
   `RasterImage` has coarse bounds (insertion + u·width + v·height); generic
   `delete` works on all. Covered by `phase5_*` test.
 - **Done (typed create):** `create_raster_image(file_path, insertion, u, v, size)`
-  → `Operation::CreateRasterImage`; the host auto-registers the `ImageDefinition`
-  (asserted by `phase5_create_raster_image_registers_definition`). Covered by that
-  test. `Table`/light stay read-only `EntityView` DTOs (typed ops only where the
-  spec declares an action mapping).
+  → `Operation::CreateRasterImage` (host auto-registers the ImageDefinition), and
+  `create_table(insertion_point, data[row][col])` → `Operation::CreateTable`
+  (non-rectangular grid → `Validation`; cells built as text). Covered by
+  `phase5_create_raster_image_*` and `phase5ii_create_table_*` tests. `light` stays
+  read-only (no meaningful geometric action).
 
 ## 🔧 Outstanding methods on supported families