Refine Technique Path Scope Logic and Enhance Test Coverage

- Updated the `exercise_passes_technique_path_scope` function to clarify the requirements for technique inclusion, ensuring that the primary technique must appear in the exercise text.
- Enhanced the logic to allow for relaxed matching based on parts of the primary topic, improving flexibility in exercise validation.
- Added new tests to validate the rejection of off-topic exercises, specifically addressing cases where only stage goals mention the primary technique.
- Improved the selection logic in `pick_best_path_hit` to ensure proper handling of roadmap stage matches.

backend/planning_exercise_semantics.py

@@ -207,7 +207,10 @@ def exercise_passes_technique_path_scope(
     relaxed: bool = False,
 ) -> bool:
     """
-    Technik-Pfad: keine Geschwister-Technik; Haupttechnik im Übungstext oder Stufen-Lernziel.
+    Technik-Pfad: keine Geschwister-Technik; Haupttechnik muss im Übungstext vorkommen.
+
+    Das Stufen-Lernziel allein reicht nicht — sonst würden themenfremde Übungen (z. B. Kumite)
+    nur wegen „Mawashi Geri“ im Lernziel durch das Gate rutschen.
     """
     primary = _normalize_phrase(primary_topic)
     if not primary:
@@ -218,11 +221,14 @@ def exercise_passes_technique_path_scope(
     if excludes and _blob_matches_stage_excludes(blob, excludes):
         return False
 
-    in_exercise = _phrase_in_blob(primary, blob)
-    in_stage = _phrase_in_blob(primary, _blob_from_fields("", "", learning_goal, []))
-    if in_exercise or in_stage:
+    if _phrase_in_blob(primary, blob):
         return True
-    return relaxed
+
+    if relaxed:
+        parts = [p for p in primary.split() if len(p) >= 4]
+        if parts and any(_phrase_in_blob(part, blob) for part in parts):
+            return True
+    return False
 
 
 def _detect_development_arc(q_lower: str) -> List[str]:
@@ -1245,15 +1251,16 @@ def pick_best_path_hit(
         return best
 
     chosen = _scan(strict=True)
-    if chosen:
-        return chosen
-    chosen = _scan(strict=False)
     if chosen:
         return chosen
 
     if roadmap_stage_match:
         return None
 
+    chosen = _scan(strict=False)
+    if chosen:
+        return chosen
+
     # Notfall (nur retrieval-first / Brücken): bester verbleibender Treffer
     fallback: Optional[Dict[str, Any]] = None
     fallback_key: Tuple[float, float] = (-1.0, -1.0)

backend/tests/test_planning_roadmap_stage_match.py

@@ -249,6 +249,62 @@ def test_pick_best_skips_kumite_for_mawashi_athletic_path():
     assert int(chosen["id"]) == 2
 
 
+def test_technique_scope_rejects_kumite_when_only_stage_goal_mentions_mawashi():
+    siblings = technique_sibling_excludes("mawashi geri")
+    assert not exercise_passes_technique_path_scope(
+        primary_topic="mawashi geri",
+        title="Kumite Grundstellungen",
+        summary="Partner-Distanz und freier Kampf",
+        goal="Kumite-Technik",
+        learning_goal="Sprungkraft und Koordination für Mawashi Geri",
+        sibling_excludes=siblings,
+        relaxed=True,
+    )
+
+
+def test_pick_best_roadmap_rejects_kumite_with_path_primary_topic():
+    q = "gesprungener Mawashi Geri Sprungphase"
+    brief = enrich_brief_with_path_constraints(build_semantic_brief(q), q)
+    primary = (brief.primary_topic or "mawashi geri").strip()
+    stage_goal = "Sprungvorbereitung für Mawashi Geri"
+    stage_brief = build_stage_match_brief(
+        learning_goal=stage_goal,
+        path_primary_topic=primary,
+        path_technique_excludes=technique_sibling_excludes(primary),
+    )
+    hits = [
+        {
+            "id": 1,
+            "title": "Kumite Distanztraining",
+            "summary": "Partnerarbeit",
+            "goal": "Kampfvorbereitung",
+            "score": 0.95,
+            "semantic_score": 0.4,
+            "stage_semantic_score": 0.35,
+        },
+        {
+            "id": 2,
+            "title": "Sprungkraft Plyometrie",
+            "summary": "Absprung für Tritttechnik",
+            "goal": "Sprungkraft Mawashi Geri Vorbereitung",
+            "score": 0.7,
+            "semantic_score": 0.45,
+            "stage_semantic_score": 0.42,
+        },
+    ]
+    chosen = pick_best_path_hit(
+        hits,
+        set(),
+        stage_learning_goal=stage_goal,
+        roadmap_stage_match=True,
+        stage_match_brief=stage_brief,
+        path_primary_topic=primary,
+        path_technique_excludes=technique_sibling_excludes(primary),
+    )
+    assert chosen is not None
+    assert int(chosen["id"]) == 2
+
+
 def test_technique_scope_rejects_sibling_geri_for_mawashi_path():
     siblings = technique_sibling_excludes("mawashi geri")
     assert any("mae" in s for s in siblings)