Fix SOP→home flow, stop sample-data fallback for real projects, add custom WP types

- SOP Complete now returns to the project home page after the confirmation
  popup (instead of staying on the SOP tab), and stamps projectId onto the SOP.
- WP creator no longer substitutes the Micron SAMPLE_SOP when a project is
  active but its SOP isn't found — it shows a "complete the SOP first" empty
  state instead. Sample is only used for a standalone (no-project) preview.
  This was the source of "loaded with sample data I didn't select."
- SOP WP Types step gains "+ Add Custom Type" (editable name + remove);
  blank-named custom types are dropped from the generated SOP. Custom types
  round-trip via the saved state.

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

html/wp-creation-app.js

@@ -136,7 +136,12 @@ function editQuality(id){
 }
 function renderCtxBar(){
   const bar=document.getElementById('ctx-bar');
-  if(!SOP){ bar.innerHTML=`<div class="ctx-empty">No SOP loaded — <button class="link-btn" onclick="loadSampleSOP()">load the sample</button> or import one from the Configuration tool.</div>`; return; }
+  if(!SOP){
+    bar.innerHTML = activeProjectId
+      ? `<div class="ctx-empty">No SOP found for this project yet — complete the <strong>SOP Configuration</strong> first, then return here.</div>`
+      : `<div class="ctx-empty">No SOP loaded — <button class="link-btn" onclick="loadSampleSOP()">load the sample</button> or import one from the Configuration tool.</div>`;
+    return;
+  }
   const p=SOP.project||{}, g=SOP.governance||{};
   const sample=SOP.meta&&SOP.meta.sample?`<span class="ctx-sample">SAMPLE</span>`:'';
   bar.innerHTML=`<div class="ctx-main"><div class="ctx-proj">${esc(p.name||'Untitled')} ${sample}</div>
@@ -1039,7 +1044,11 @@ loadStore();
       if(d && d.woTypes){ SOP = d; applySOP(); newPackage(); return; }
     }
   } catch(e){}
-  loadSampleSOP();
+  // No SOP found. Only show the Micron SAMPLE for a standalone preview (no project
+  // context). For a real project, never substitute sample data — show the empty
+  // state so it's clear the project's SOP must be completed first.
+  if(activeProjectId){ SOP=null; renderCtxBar(); newPackage(); }
+  else { loadSampleSOP(); }
 })();
 setRadio('status','Draft');
 renderSavedList();