✨ feat(lsp_server): implement missing providers and json coverage

Implement workspace configuration/folders and apply WorkspaceEdit.changes.

Strengthen provider JSON coverage (all methods require params, no errors).

Verified: Release test_provider

lsp-server/test/test_provider/fixtures/code_action_missing_semicolon.tsl

@@ -0,0 +1,3 @@
+var target: integer;
+target := 1
+target := target + 1

lsp-server/test/test_provider/fixtures/color_literals.tsl

@@ -0,0 +1,8 @@
+var red: string;
+red := "#ff0000";
+
+var green: string;
+green := "#00FF00";
+
+var with_alpha: string;
+with_alpha := "#11223344";

lsp-server/test/test_provider/fixtures/inlay_hint_case.tsl

@@ -0,0 +1,2 @@
+var count := 1;
+var name := "alpha";

lsp-server/test/test_provider/fixtures/type_hierarchy_unit.tsf

@@ -0,0 +1,43 @@
+unit TypeHierarchyUnit;
+interface
+
+type Base = class
+public
+    function BaseMethod(): integer;
+end;
+
+type Mid = class(Base)
+public
+    function MidMethod(): integer;
+end;
+
+type Derived = class(Mid)
+public
+    function DerivedMethod(): integer;
+end;
+
+implementation
+
+function Base.BaseMethod(): integer;
+begin
+  return 0;
+end;
+
+function Mid.MidMethod(): integer;
+begin
+  return 0;
+end;
+
+function Derived.DerivedMethod(): integer;
+begin
+  return 0;
+end;
+
+procedure TestTypeHierarchy();
+var d: Derived;
+begin
+  d := new Derived;
+end;
+
+end.
+