Add multi-language logic exploration

README.md

@@ -47,13 +47,18 @@ fourth function-scoped view only when requested:
   inheritance, definitions, and tests flow toward the thing they help create or exercise.
 - **Web** shows the larger convergence picture: Flow contributors plus contextual relationships,
   callers, containers, and direct members or execution dependencies owned by the focus.
-- **Logic** shows the possible static control paths inside a focused Python function or method.
-  Entry, decisions, actions, loops, merges, returns, and exceptions connect through explicit
+- **Logic** shows the possible static control paths inside a focused Python, JavaScript, or C++
+  function or method. Entry, decisions, actions, loops, convergence points, returns, and
+  exceptions connect through explicit
   `TRUE`, `FALSE`, `NEXT`, `CASE`, `LOOP`, `RETURN`, and `RAISE` paths. Logic is stored separately
   and does not add statement-level noise to Nodes, Flow, Web, or search.
 
 Graph cards show the node's readable leaf name and kind without clipping either value. The full
 qualified identity remains available in the tooltip, compact descriptor, and full inspector.
+The left browser panel can combine text, family, node-kind, language, and capability filters.
+Quick presets expose Logic-ready nodes, Python callables, tests, routes, and documentation without
+requiring users to know stable IDs. Selecting a canvas node emphasizes its directly connected
+neighbors and edges while muting unrelated paths.
 
 **Hide node** removes noise without changing the index. In Flow and Web, hiding a contributor also
 removes upstream ancestors that no longer have a path to the focus. Nodes between the hidden