Record Hatch completion

docs/plugin-host-model-completion-plan.md

@@ -4,7 +4,7 @@
 
 Build a general Python document model over the OCS host API for all **43 canvas kinds**. A kind is **complete** only after the per-kind gate below passes. Merely appearing in a converter or allowing a `layer` edit is partial coverage. Keep a property-level record of read/write, read-only, snapshot-only, and unsupported fields in the [43-kind coverage ledger](plugin-host-model-coverage-ledger.md). Do not resume the separate Lisp-to-Python conversion work.
 
-As of 19 September 2026, the current AttributeEntity increment is OCS commit `cf2a9235` on `plugin/host-model-api` and PandoraBox commit `9c6b5c3` on `main`. Host API is v7. The Python feature has explicit writes for **21 of 43** canvas kinds: 20 are creatable and `Insert` remains update-only. This is **not** 21 completed kinds: Tolerance, Shape and AttributeEntity pass every completion gate. AttributeDefinition passes its host and real IPC lifecycle but remains short of `Complete` because the pinned acadrust DXF reader drops optional ATTDEF fields. The other 22 canvas kinds have only `layer` writes through the document model. All 43 have raw typed snapshots. There are three internal records and two opaque fallbacks outside the 43 canvas kinds.
+As of 19 September 2026, the current Hatch increment is OCS commit `98b56ef6` on `plugin/host-model-api` and PandoraBox commit `a9b5de8` on `main`. Host API is v7. The Python feature has explicit writes for **22 of 43** canvas kinds: 21 are creatable and `Insert` remains update-only. This is **not** 22 completed kinds: Tolerance, Shape, AttributeEntity and Hatch pass every completion gate. AttributeDefinition passes its host and real IPC lifecycle but remains short of `Complete` because the pinned acadrust DXF reader drops optional ATTDEF fields. The other 21 canvas kinds have only `layer` writes through the document model. All 43 have raw typed snapshots. There are three internal records and two opaque fallbacks outside the 43 canvas kinds.
 
 Repositories:
 
@@ -93,7 +93,7 @@ The last five may require new engine capabilities rather than only Python conver
 
 ## Handoff start point
 
-Continue with **Hatch**. Build structurally valid solid and patterned hatch fixtures with closed boundaries, expose only fields whose mutations OCS can validate, and verify fill rendering, boundary integrity, deletion, undo/redo and both file formats through real IPC. AttributeDefinition remains mapped and integration-tested but open at W: pinned acadrust `568a12c` loses optional ATTDEF fields such as width factor on DXF read. Do not mark it complete until that dependency is fixed and the full property state passes DXF save/reopen. Keep the exact queue above and update statuses with evidence after each increment.
+Continue with **Leader**. Build a valid vertex path and annotation-linked fixture, map geometry separately from annotation/object handles, and verify path rendering, selection, reference preservation, deletion, undo/redo and both file formats through real IPC. AttributeDefinition remains mapped and integration-tested but open at W: pinned acadrust `568a12c` loses optional ATTDEF fields such as width factor on DXF read. Do not mark it complete until that dependency is fixed and the full property state passes DXF save/reopen. Keep the exact queue above and update statuses with evidence after each increment.
 
 ## Phase 8 progress log
 
@@ -115,3 +115,5 @@ Continue with **Hatch**. Build structurally valid solid and patterned hatch fixt
 - AttributeDefinition remains **Integration-tested / DXF blocked**, not Complete: acadrust `568a12c`'s ATTDEF DXF reader does not restore optional AcDbText fields including width factor. The real test and ledger record that exact W-gate gap. The queue now continues with `AttributeEntity`.
 - Closed `AttributeEntity` without flattening canonical drawing storage. V4 views and IPC snapshots expose each nested child by handle, while host create/update/delete and transactions rewrite the owning Insert so rendering, serialization and undo remain consistent.
 - `staged_python_attribute_entity_lifecycle_over_real_ipc` passes C/R/E/D/U/I/W/V/P with the actual v7 adapter. It creates a linked attribute from its block's ATTDEF, reads and edits value/placement/rotation, selects the parent Insert, renders text, rejects invalid tag/height/owner edits atomically, reopens edited and deleted state in DWG and DXF, and proves three-step undo/redo. AttributeEntity is **Complete**; the queue now continues with `Hatch`.
+- Completed `Hatch` with full solid/pattern definitions and typed nested boundary paths. The adapter generator now handles single-payload tagged enums as `{kind, value}` dictionaries, which covers every Hatch edge variant and is reusable by later nested entity models. Unknown adapter properties are rejected instead of being silently ignored.
+- `staged_python_hatch_lifecycle_over_real_ipc` passes C/R/E/D/U/I/W/V/P with closed line-loop fixtures: solid creation, conversion to a stored-line pattern, boundary replacement, selection and live render-cache checks, atomic invalid scale/association/open-loop/unmapped-payload rejection, edited/deleted DWG and DXF reopen, post-reopen edits, and three-step undo/redo. Hatch is **Complete**; the queue now continues with `Leader`.

docs/plugin-host-model-coverage-ledger.md

@@ -1,6 +1,6 @@
 # OCS canvas kind coverage ledger
 
-Use with [the completion plan](plugin-host-model-completion-plan.md). This ledger is current as of 19 September 2026: **21 of 43 canvas kinds have explicit geometry writes** (20 creatable, plus update-only `Insert`), **3 kinds are complete**, and 22 remain layer-only. `Mapped` means at least one non-layer field is exposed for Python writes; it does **not** mean the kind passes the completion gate. `Update-only` means Python creation is unavailable. `Layer-only` means raw inspection and canvas layer edits exist, but geometry is not mapped. Record actual evidence or a blocking issue before changing any status to `Complete`.
+Use with [the completion plan](plugin-host-model-completion-plan.md). This ledger is current as of 19 September 2026: **22 of 43 canvas kinds have explicit geometry writes** (21 creatable, plus update-only `Insert`), **4 kinds are complete**, and 21 remain layer-only. `Mapped` means at least one non-layer field is exposed for Python writes; it does **not** mean the kind passes the completion gate. `Update-only` means Python creation is unavailable. `Layer-only` means raw inspection and canvas layer edits exist, but geometry is not mapped. Record actual evidence or a blocking issue before changing any status to `Complete`.
 
 Completion gate codes: **C** = create through Python document model; **R** = read; **E** = edit defining geometry and another property; **D** = delete; **U** = undo/redo and atomic failure; **I** = real IPC plus GUI/canvas pick or observable behavior; **W** = DWG and DXF save/reopen; **V** = invalid-input checks and untouched-field/reference preservation; **P** = portable H7 v5 build. A kind is `Complete` only when **C/R/E/D/U/I/W/V/P** all pass and its property catalog matches implementation. `Blocked` requires a specific dependency or failing fixture.
 
@@ -27,7 +27,7 @@ Completion gate codes: **C** = create through Python document model; **R** = rea
 | Shape | **Complete** | `staged_python_shape_lifecycle_over_real_ipc` passes C/R/E/D/U/I/W/V/P with a generated parser-valid SHX file and a real shape-file `TextStyle`: high-level create/read/transaction edit/delete; insertion, size, rotation and width-factor edits; live canvas selection; grouped undo/redo; invalid size and missing style rollback; exact identity/style/common-field preservation; and DWG plus DXF reopen. Each live and reopened document renders the three-point SHX glyph rather than the placeholder. Host-owned reference binding writes the stable style handle needed by DWG. The DXF fallback now searches all `is_shape_file` styles, preserving named-style glyph resolution after reopen. |
 | AttributeDefinition | **Integration-tested / DXF blocked** | Host commit `5b854bd1` and adapter commit `bb259ff` map block ownership plus every stable ATTDEF field except the nested `embedded_mtext` payload, which is snapshot-readable and preserved untouched. `staged_python_attribute_definition_lifecycle_over_real_ipc` passes C/R/E/D/U/I/V/P with a real block record, Block/BlockEnd markers and linked Insert: high-level creation inside the block, readback, grouped placement/default/rotation/width edits, selection, render text, atomic tag/height/style/owner rejection, deletion persistence, and three-step undo/redo. DWG reopens with the full edited state. DXF reopens identity, ownership, tag, prompt, value, placement, height and rotation, and OCS no longer double-converts ATTDEF/ATTRIB rotation. **W remains open** because pinned acadrust `568a12c` drops optional ATTDEF fields including width factor while reading DXF; the regression test keeps this limitation explicit. `embedded_mtext` mutation also remains unsupported pending linked-layout validation. |
 | AttributeEntity | **Complete** | OCS commit `cf2a9235` and adapter commit `9c6b5c3` make nested ATTRIB records addressable by handle while retaining canonical storage in `Insert.attributes`. Host validation binds tag to a definition in the Insert's block, validates placement/text geometry and style references, keeps owner and definition handles read-only, and preserves embedded MTEXT. `staged_python_attribute_entity_lifecycle_over_real_ipc` passes C/R/E/D/U/I/W/V/P with a real block, ATTDEF and Insert: high-level create/read/transaction edit/delete, parent selection, rendered text, atomic invalid tag/height/owner rejection, edited and deleted DWG/DXF reopen, and three-step undo/redo. `nested_insert_attribute_crud_uses_parent_storage_and_undo` additionally proves the child never becomes an orphan flat entity in the host document. |
-| Hatch | Layer-only | Requires valid boundary and pattern fixtures. |
+| Hatch | **Complete** | OCS commit `98b56ef6` and adapter commit `a9b5de8` expose solid and patterned Hatches with elevation/normal, complete pattern definitions, pattern controls, style, association state, boundary paths and seed points. Nested tagged boundary edges use the reusable `{kind, value}` adapter form. Host validation requires closed finite loops, validates line/arc/ellipse/polyline/spline payloads and stored pattern lines, resolves associative boundary handles, and preserves gradient and MPOLYGON payloads as explicitly unsupported. `staged_python_hatch_lifecycle_over_real_ipc` passes C/R/E/D/U/I/W/V/P: Python solid creation, patterned boundary edit, live render-model pattern/boundary checks, selection, atomic invalid scale/association/open-loop/unmapped-property rejection, edited and deleted DWG/DXF reopen, post-reopen edits, and three-step undo/redo. |
 | Leader | Layer-only | Requires annotation-linked fixture. |
 | MLine | Layer-only | Requires valid style and vertex fixture. |
 | Dimension | Layer-only | Track individual dimension subtypes. |