P0-R5-R3 Research Design reset and workflow sync

app.py

@@ -505,13 +505,19 @@ def _uploaded_material_descriptors() -> list[dict[str, str]]:
 
 
 def _method_intent_signature() -> str:
-    """Stable identity for the manual Research Design control.
+    """Identity for the manual Research Design control and current paper intent.
 
-    Title and Keywords must never reset or auto-change the user's selected
-    research design. The signature therefore identifies the control policy, not
-    the topic text.
+    A new task defaults to Qualitative Research. If the user manually selects
+    Survey-Based Quantitative Research, changing the Title or Keywords resets
+    the design to Qualitative Research so the workflow and recommended template
+    return to the qualitative/ASQ lane together. Uploaded materials do not reset
+    the selection.
     """
-    payload = {"research_design_control": "manual-default-qualitative-v1"}
+    payload = {
+        "research_design_control": "manual-default-qualitative-v2",
+        "topic": str(st.session_state.get("sp_topic") or DEFAULT_TOPIC).strip(),
+        "keywords": str(st.session_state.get("sp_keywords") or DEFAULT_KEYWORDS).strip(),
+    }
     return hashlib.sha256(
         json.dumps(payload, ensure_ascii=False, sort_keys=True, separators=(",", ":")).encode("utf-8")
     ).hexdigest()
@@ -1516,8 +1522,8 @@ def render_workspace_controls(user):
     else:
         # SmartPaper intentionally supports only two reader-visible research
         # designs. New tasks default to qualitative research. The user may
-        # adjust the design manually; Title, Keywords, and uploaded materials
-        # never auto-select or reset the Research Design.
+        # adjust the design manually. Changing Title or Keywords resets a manual
+        # survey selection to qualitative; uploaded materials do not reset it.
         method_signature = _method_intent_signature()
         stored = str(st.session_state.get("sp_method_confirmation") or "").strip().casefold()
         stored_sig = str(st.session_state.get("sp_method_confirmation_signature") or "").strip()