feat(export): INV-EX4 single-template source + fix edit-path justification

מקור-תבנית-יחיד לכל מפיקי-מסמכי-ההחלטה: כולם מחילים סגנונות דרך
skills/docx/decision_template.docx בלבד; אסור hand-setting של פונט/גודל.

- docs/spec/06-export.md — INV-EX4 חדש (מקור-תבנית-יחיד, →G2)
- docx_reviser: מסלול-העריכה (revise_draft/apply_user_edit) הכניס פסקאות
  עם jc=right קשיח + David/sz ידני → איבד יישור דו-צדדי של התבנית.
  עכשיו מחיל pStyle מן-הטמפלט (Normal/Heading 2/Quote) + jc=both קנוני,
  בלי rFonts/sz ידני (הגופן/גודל מגיעים מהסגנון).
- שומר-CI test_docx_template_single_source — נכשל על בניית rFonts/sz
  במפיקים מחוץ לטמפלט (חריג מסומן # INV-EX4-ok ל-_mark_run_rtl,
  שמחזק את גופן-התבנית David כעקיפת באג-RTL של Word).
- אומת: build_party_claims_summary_docx (סיכום-מנהלים, WS3) + export_decision
  (סופי/טיוטת-ביניים) כבר תבניתיים ותואמי-INV-EX4.
- ארכוב scripts/exec_summary_1043.py (one-off; הוחלף ב-build_party_claims_summary_docx).
- עדכון 2 טסטים שאימתו את ההתנהגות הישנה (rFonts על run מוכנס).

Invariants: מקיים INV-EX4 (חדש), INV-G2 (מקור-יחיד, אין מסלול-סגנון מקביל),
INV-EX1 (DOCX נגזר). נוגע ב-docx_reviser/docx_exporter/analysis_docx_exporter.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

mcp-server/tests/test_docx_reviser.py

@@ -130,6 +130,16 @@ def _find_ins_with_runs(tree: etree._Element) -> etree._Element | None:
     return None
 
 
+def _find_enclosing_p(element: etree._Element) -> etree._Element | None:
+    """Walk up to the enclosing <w:p>."""
+    cur = element
+    while cur is not None:
+        if cur.tag == _w("p"):
+            return cur
+        cur = cur.getparent()
+    return None
+
+
 def test_insert_after_ins_has_author_and_date(sample_docx: Path, tmp_path: Path) -> None:
     out = tmp_path / "out.docx"
     rev = Revision(id="r1", type="insert_after",
@@ -147,7 +157,10 @@ def test_insert_after_ins_has_author_and_date(sample_docx: Path, tmp_path: Path)
     assert date_str.endswith("Z")  # ISO 8601 UTC
 
 
-def test_insert_after_uses_rtl_and_david(sample_docx: Path, tmp_path: Path) -> None:
+def test_insert_after_uses_rtl_and_template_style(sample_docx: Path, tmp_path: Path) -> None:
+    """INV-EX4: an inserted paragraph carries the template's named style via
+    <w:pStyle> and an <w:rtl/> run marker — but does NOT hand-set rFonts/sz
+    (font/size come from the style). jc is the canonical body 'both'."""
     out = tmp_path / "out.docx"
     rev = Revision(id="r1", type="insert_after",
                    anchor_bookmark="block-alef", content="מוסף")
@@ -162,10 +175,22 @@ def test_insert_after_uses_rtl_and_david(sample_docx: Path, tmp_path: Path) -> N
     assert run is not None
     rPr = run.find(_w("rPr"))
     assert rPr is not None
+    # RTL marker preserved (so Word picks the style's cs=David slot)…
     assert rPr.find(_w("rtl")) is not None
-    rFonts = rPr.find(_w("rFonts"))
-    assert rFonts is not None
-    assert rFonts.get(_w("ascii")) == "David"
+    # …but NO hand-set font/size on the run (INV-EX4).
+    assert rPr.find(_w("rFonts")) is None
+    assert rPr.find(_w("sz")) is None
+    assert rPr.find(_w("szCs")) is None
+
+    # The enclosing paragraph references a template style + canonical jc=both.
+    para = _find_enclosing_p(ins)
+    assert para is not None
+    pPr = para.find(_w("pPr"))
+    assert pPr is not None
+    pStyle = pPr.find(_w("pStyle"))
+    assert pStyle is not None and pStyle.get(_w("val"))  # Normal → real styleId
+    jc = pPr.find(_w("jc"))
+    assert jc is not None and jc.get(_w("val")) == "both"
 
 
 # ── apply_tracked_revisions: insert_before ────────────────────────

mcp-server/tests/test_docx_template_single_source.py

@@ -0,0 +1,76 @@
+"""שומר INV-EX4 — מקור-תבנית-יחיד לכל מפיקי-מסמכי-ההחלטה.
+
+כל מפיק של מסמך-Word הקשור-להחלטה חייב להחיל עיצוב דרך הסגנונות שמוגדרים
+בטמפלט היחיד (skills/docx/decision_template.docx), ולא לקבוע פונט/גודל ידנית
+(``rFonts`` / ``sz`` / ``szCs``) — אלה נגזרים מ-styles.xml של הטמפלט.
+
+הטסט גורף את מודולי-המפיקים ונכשל אם נבנה אלמנט ``w:rFonts`` / ``w:sz`` /
+``w:szCs`` בקוד, אלא אם השורה נושאת את הסמן המפורש ``# INV-EX4-ok`` (חריג
+מתועד — למשל חיזוק גופן-התבנית עצמו David כעקיפת באג-RTL של Word).
+
+ספ: docs/spec/06-export.md §INV-EX4.
+"""
+
+from __future__ import annotations
+
+import re
+from pathlib import Path
+
+import pytest
+
+from legal_mcp.services import (
+    analysis_docx_exporter,
+    docx_exporter,
+    docx_reviser,
+    docx_retrofit,
+)
+
+# Every module that builds/edits a decision-related Word document.
+_PRODUCER_MODULES = [
+    docx_exporter,
+    analysis_docx_exporter,
+    docx_reviser,
+    docx_retrofit,
+]
+
+# Construction (not lookup) of a hand-set font/size element:
+#   OxmlElement("w:rFonts")          (python-docx producers)
+#   etree.SubElement(rPr, _w("sz"))  (raw-lxml producer: docx_reviser)
+_HANDSET_RE = re.compile(
+    r'OxmlElement\(\s*["\']w:(?:rFonts|sz|szCs)["\']'
+    r'|SubElement\([^)]*_w\(\s*["\'](?:rFonts|sz|szCs)["\']'
+)
+
+# Producers that build a document FROM SCRATCH must load the single template.
+# (docx_reviser/docx_retrofit operate on an already-templated existing doc.)
+_FROM_SCRATCH_MODULES = [docx_exporter, analysis_docx_exporter]
+
+
+def _module_path(module) -> Path:
+    return Path(module.__file__)
+
+
+def test_no_handset_font_or_size_in_producers() -> None:
+    """INV-EX4: no hand-set rFonts/sz/szCs in any producer (only via the
+    template's named styles), unless explicitly marked ``# INV-EX4-ok``."""
+    violations: list[str] = []
+    for module in _PRODUCER_MODULES:
+        path = _module_path(module)
+        for lineno, line in enumerate(path.read_text(encoding="utf-8").splitlines(), 1):
+            if _HANDSET_RE.search(line) and "INV-EX4-ok" not in line:
+                violations.append(f"{path.name}:{lineno}: {line.strip()}")
+    assert not violations, (
+        "INV-EX4 violation — hand-set font/size outside the template styles "
+        "(use a named template style, or mark with # INV-EX4-ok):\n  "
+        + "\n  ".join(violations)
+    )
+
+
+@pytest.mark.parametrize("module", _FROM_SCRATCH_MODULES)
+def test_from_scratch_producers_load_the_single_template(module) -> None:
+    """INV-EX4: from-scratch producers reference the one template file."""
+    source = _module_path(module).read_text(encoding="utf-8")
+    assert "decision_template.docx" in source, (
+        f"{_module_path(module).name} must load the single template "
+        "skills/docx/decision_template.docx (INV-EX4)."
+    )

mcp-server/tests/test_track_changes_e2e.py

@@ -207,8 +207,9 @@ def test_multiple_revisions_all_tracked_independently(tmp_path: Path) -> None:
 
 
 def test_rtl_preserved_in_tracked_insertion(tmp_path: Path) -> None:
-    """Inserted paragraph must have bidi + rtl + David font so it renders
-    correctly in Word alongside the user's content."""
+    """Inserted paragraph must have bidi + an <w:rtl/> run marker so Hebrew
+    renders via the template's cs=David slot — but font/size come from the
+    template's named paragraph style (INV-EX4), not hand-set rFonts/sz."""
     user_file = tmp_path / "user.docx"
     _make_user_edited_docx(user_file)
     docx_retrofit.retrofit_bookmarks(user_file, backup=False)
@@ -229,9 +230,10 @@ def test_rtl_preserved_in_tracked_insertion(tmp_path: Path) -> None:
             if any("עברית RTL" in (t.text or "") for t in text_els):
                 rPr = r.find(_w("rPr"))
                 assert rPr is not None
+                # RTL marker preserved…
                 assert rPr.find(_w("rtl")) is not None
-                rFonts = rPr.find(_w("rFonts"))
-                assert rFonts is not None
-                assert rFonts.get(_w("ascii")) == "David"
+                # …but NO hand-set font/size on the run (INV-EX4).
+                assert rPr.find(_w("rFonts")) is None
+                assert rPr.find(_w("sz")) is None
                 return
     pytest.fail("tracked insertion with 'עברית RTL' not found")