fix(bicep): replace LS completions entirely for version/param/param_value contexts

For specific LRU contexts (version, param, param_value), the Bicep LS was
appending its own random/irrelevant completions alongside the LRU catalog
items. The LS has no knowledge of the private ACR registry, so its suggestions
in these positions are noise.

Now the LS items are discarded entirely for these three contexts. LS items
are still kept (below LRU items) for module_path and unknown contexts.

ilsp/bicep_lsp/proxy.py

@@ -202,6 +202,16 @@ def _inject_completions(msg: dict[str, Any], context: dict | None = None) -> byt
         lru_items = BicepModuleCatalog.as_completion_items()
 
     if lru_items:
+        if ctx_type in ("version", "param", "param_value"):
+            # Replace LS completions entirely — the Bicep LS doesn't know about
+            # the private registry, so its suggestions here are noise/random.
+            if isinstance(result, list):
+                msg["result"] = lru_items
+            else:
+                result["items"] = lru_items
+                result["isIncomplete"] = False
+        else:
+            # module_path / unknown: keep LS completions below ours
             for item in items:
                 st = item.get("sortText", item.get("label", ""))
                 item["sortText"] = f"1_az_{st}"

tests/test_proxy.py

@@ -102,9 +102,9 @@ def test_version_completions_injected_on_version_context():
     assert "1.1.x" in labels
     assert "2.0.x" in labels
     assert "latest" in labels
-    # LRU versions come first
+    # LS items are replaced entirely — private registry versions only
-    assert items[0]["sortText"].startswith("0_lru_ver_")
+    assert all(i["sortText"].startswith("0_lru_ver_") for i in items)
-    assert items[-1]["sortText"].startswith("1_az_")
+    assert not any(i["label"] == "az-builtin" for i in items)
 
 
 def test_version_items_include_param_detail():
@@ -366,9 +366,8 @@ def test_param_value_injected_in_completion_response():
            "param": "environmentType", "has_open_quote": False}
     out = json.loads(_inject_completions(msg, ctx))
     labels = [i["label"] for i in out["result"]["items"]]
-    # LRU enum values should be first
+    # LRU enum values only — LS completions are replaced entirely
-    assert labels[:3] == ["DEV", "TEST", "PROD"]
+    assert labels == ["DEV", "TEST", "PROD"]
-    assert "existing" in labels
 
 
 def test_detect_unknown_context_outside_module():