feat(doc): wire application navigation to CrdtDocWorkspace

Consolidate navigation onto a single CRDT docs destination now that the
DSL switch made the runtime-test tab an exact duplicate: drop the
'Docs CRDT' dock tab, its crdt_docs_content view, the sidebar's
'Documents CRDT Test' button and its select_tab handler. The desktop
'Docs' tab and 'Documents' sidebar button land on CrdtDocWorkspace, and
mobile's workspace drawer resolves 'Documents' to the CrdtDocWorkspace
doc_page through the new pure workspace_page_id function, pinned by unit
tests (destination, label table, page distinctness, CAD fallback).

crates/apps/nigig-build/src/construction_frame/pages/workspace/cost_estimator/cost_estimate_screen.rs

@@ -225,9 +225,6 @@ script_mod! {
             }
         }
     }
-            }
-        }
-    }
 
     mod.widgets.AddRoomModal = Modal {
         width: 400.0

crates/apps/nigig-build/src/construction_frame/pages/workspace/doc/README.md

@@ -530,7 +530,7 @@ collaboration-safe acknowledged frontier.
 - [ ] CrdtDocEditor widget runtime integration test
 
 - [x] Separate CrdtDocWorkspace runtime-test view
-- [ ] Wire application navigation switch to CrdtDocWorkspace
+- [x] Wire application navigation switch to CrdtDocWorkspace
 
 ## CRDT-native table rendering
 
@@ -687,6 +687,28 @@ toolbar with CRDT engine routing:
 Deliberate gaps, matching documented limitations: the mobile Edit/Done
 IME toggle is absent from the CRDT toolbar (the native widget has no IME
 interaction mode yet), and in-cell table editing remains future work.
-The former `crdt_docs` runtime-test tab still instantiates the same
-full workspace view; consolidating the duplicated docs tabs and pointing
-navigation at the CRDT view is the next roadmap item.
+
+## Application navigation switch to CrdtDocWorkspace
+
+With the DSL switch complete, the temporary "Docs CRDT" runtime-test tab
+was an exact duplicate of the real "Docs" tab, so navigation has been
+consolidated onto a single CRDT destination:
+
+- The desktop dock's `workspace_tabs` keeps one "Docs" tab
+  (`docs_content` containing `CrdtDocWorkspace`); the `crdt_docs_tab`
+  definition, its `crdt_docs_content` view, the sidebar's
+  "Documents CRDT Test" button and its `select_tab` handler are removed.
+  "Documents" in the sidebar and the dock tab bar both land on the CRDT
+  editor.
+- Mobile's workspace drawer resolves "Documents" to `doc_page` (whose
+  `m_doc_content` is `CrdtDocWorkspace`). That mapping is now the pure
+  function `workspace_page_id` in `pages/workspace/project/mod.rs`,
+  pinned by unit tests that assert the Documents destination, the
+  label-to-page table, page distinctness, and the CAD fallback for
+  unknown labels.
+
+The legacy fallback posture is unchanged: `mod.widgets.DocWorkspace`
+remains registered, so reverting any navigation node to the classic
+editor is again a one-line DSL change. The standalone runtime-test view
+roadmap item stays checked historically — it served as the pre-switch
+verification surface and was removed only after becoming a duplicate.

crates/apps/nigig-build/src/construction_frame/pages/workspace/mod.rs

@@ -18,7 +18,7 @@ pub fn script_mod(vm: &mut ScriptVm) {
     //   2. cad             — CadWorkspace + CAD script bindings
     //   3. spreadsheet     — SpreadsheetGrid widget prototype
     //   4. invoice         — InvoiceWorkspace widget prototype
-    //   5. doc             — DocWorkspace widget prototype
+    //   5. doc             — CrdtDocWorkspace (active) + DocWorkspace (fallback)
     //   6. project_management — ProjectManagementWorkspace widget prototype
     //   7. project         — BuildProjectsPage (references all above)
     cost_estimator::script_mod(vm);

crates/apps/nigig-build/src/construction_frame/pages/workspace/project/mod.rs

@@ -69,7 +69,7 @@ script_mod! {
 
                     // ---- Right dock: CAD, Docs, Spreadsheet, Invoice, Schedule, Solar (tabbed) ----
                     workspace_tabs := DockTabs {
-                        tabs: [@cad_tab, @docs_tab, @crdt_docs_tab, @spreadsheet_tab, @invoice_tab, @pm_tab, @solar_tab]
+                        tabs: [@cad_tab, @docs_tab, @spreadsheet_tab, @invoice_tab, @pm_tab, @solar_tab]
                         selected: 0
                     }
 
@@ -79,12 +79,6 @@ script_mod! {
                         template: @PermanentTab
                     }
 
-                    crdt_docs_tab := DockTab {
-                        name: "Docs CRDT"
-                        kind: @crdt_docs_content
-                        template: @PermanentTab
-                    }
-
                     docs_tab := DockTab {
                         name: "Docs"
                         kind: @docs_content
@@ -290,23 +284,6 @@ script_mod! {
                                 draw_bg +: { color: #x2a333c, color_hover: #x3f4b56, color_down: #x4a5b66, border_radius: 10.0 }
                                 draw_text +: { color: #xe6edf3, text_style: theme.font_bold { font_size: 13.0 } }
                             }
-                            desktop_open_crdt_docs_btn := Button {
-                                width: Fill
-                                height: 44
-                                text: "Documents CRDT Test"
-
-                                draw_bg +: {
-                                    color: #x4C1D95
-                                    color_hover: #x5B21B6
-                                    color_down: #6D28D9
-                                    border_radius: 10
-                                }
-
-                                draw_text +: {
-                                    color: #xFFFFFF
-                                    text_style: theme.font_bold { font_size: 13 }
-                                }
-                            }
                             desktop_open_excel_btn := Button {
                                 width: Fill, height: 44
                                 text: "Spreadsheet"
@@ -347,13 +324,6 @@ script_mod! {
                         docs_workspace := mod.widgets.CrdtDocWorkspace {}
                     }
 
-                    crdt_docs_content := View {
-                        width: Fill
-                        height: Fill
-
-                        crdt_docs_workspace := mod.widgets.CrdtDocWorkspace {}
-                    }
-
                     // Right dock: Spreadsheet workspace content
                     spreadsheet_content := View {
                         width: Fill, height: Fill
@@ -959,15 +929,6 @@ impl BuildProjectsPage {
             dock.select_tab(cx, id!(docs_tab));
             self.view.redraw(cx);
         }
-        if self
-            .view
-            .button(cx, ids!(desktop_open_crdt_docs_btn))
-            .clicked(actions)
-        {
-            let dock = self.view.dock(cx, ids!(dock));
-            dock.select_tab(cx, id!(crdt_docs_tab));
-            self.view.redraw(cx);
-        }
         if self
             .view
             .button(cx, ids!(desktop_open_excel_btn))
@@ -1514,15 +1475,7 @@ impl BuildProjectsPage {
             .label(cx, ids!(m_workspace_title))
             .set_text(cx, workspace_type);
 
-        let page = match workspace_type {
-            "CAD Workspace" => id!(cad_page),
-            "Spreadsheet" => id!(spreadsheet_page),
-            "Documents" => id!(doc_page),
-            "Invoice Builder" => id!(invoice_page),
-            "Project Management" => id!(project_management_page),
-            "Solar Calculator" => id!(solar_calculator_page),
-            _ => id!(cad_page),
-        };
+        let page = workspace_page_id(workspace_type);
         self.view
             .page_flip(cx, ids!(m_workspace_flip))
             .set_active_page(cx, page);
@@ -1679,3 +1632,56 @@ impl BuildProjectsPage {
         self.view.redraw(cx);
     }
 }
+
+/// Maps a mobile workspace-drawer label to its overlay page. "Documents"
+/// resolves to `doc_page`, whose `m_doc_content` is the CRDT-native
+/// `CrdtDocWorkspace` — the mobile half of the navigation switch, kept as
+/// a pure function so the destination stays pinned by tests.
+fn workspace_page_id(workspace_type: &str) -> LiveId {
+    match workspace_type {
+        "CAD Workspace" => id!(cad_page),
+        "Spreadsheet" => id!(spreadsheet_page),
+        "Documents" => id!(doc_page),
+        "Invoice Builder" => id!(invoice_page),
+        "Project Management" => id!(project_management_page),
+        "Solar Calculator" => id!(solar_calculator_page),
+        _ => id!(cad_page),
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn documents_navigation_targets_the_crdt_doc_page() {
+        assert_eq!(workspace_page_id("Documents"), id!(doc_page));
+    }
+
+    #[test]
+    fn every_workspace_label_maps_to_a_distinct_page() {
+        let labels = [
+            ("CAD Workspace", id!(cad_page)),
+            ("Spreadsheet", id!(spreadsheet_page)),
+            ("Documents", id!(doc_page)),
+            ("Invoice Builder", id!(invoice_page)),
+            ("Project Management", id!(project_management_page)),
+            ("Solar Calculator", id!(solar_calculator_page)),
+        ];
+        for &(label, expected) in &labels {
+            assert_eq!(workspace_page_id(label), expected, "label {label}");
+        }
+        let pages: Vec<LiveId> = labels.iter().map(|&(label, _)| workspace_page_id(label)).collect();
+        for (i, page) in pages.iter().enumerate() {
+            for other in pages.iter().skip(i + 1) {
+                assert_ne!(page, other, "workspace pages must not alias");
+            }
+        }
+    }
+
+    #[test]
+    fn unknown_workspace_falls_back_to_cad_page() {
+        assert_eq!(workspace_page_id(""), id!(cad_page));
+        assert_eq!(workspace_page_id("Does Not Exist"), id!(cad_page));
+    }
+}