Merge remote-tracking branch 'origin/main' into rebase-357

# Conflicts:
#	mcp-server/src/legal_mcp/services/db.py

mcp-server/src/legal_mcp/tools/drafting.py

@@ -516,9 +516,18 @@ async def export_docx(case_number: str, output_path: str = "") -> str:
 
 # ── Interim draft (pre-ruling) ────────────────────────────────────
 
-# Blocks written for the interim draft, in display order.
+# Blocks written for the interim draft, in a FIXED order.
 # This is the same content the chair sees in the final decision (same template,
-# same skill, same prompts) — minus opening, ruling, summary, signatures.
+# same skill, same prompts, same single canonical write path — block_writer) —
+# minus ruling, summary, signatures.
+#
+# Determinism (#204 / WS5): the interim draft is STRUCTURALLY deterministic.
+# Each block is generated by block_writer.write_block, which now pins the model
+# (Opus 4.8) and a per-block reasoning effort, and uses fixed structural prompts
+# (e.g. block-he's opening is always "לפנינו ערר…"). The display order on export
+# is fixed separately by docx_exporter._INTERIM_BLOCK_ORDER. There is no parallel
+# generation path (G2): write_interim_draft is a thin orchestrator over the same
+# write_and_store_block used by the full decision.
 _INTERIM_BLOCKS = ["block-he", "block-vav", "block-tet", "block-zayin", "block-chet"]