phase: 20.49 COMPLETE; 20.50 Flow+String minimal reps; 20.51 selfhost v0/v1 minimal (Option A/B); hv1-inline binop/unop/copy; docs + run_all + CURRENT_TASK -> 21.0

docs/reference/core-language/override-delegation-syntax.md

@@ -163,7 +163,7 @@ box ConflictNode from ParentA, ParentB {
 #### 重複定義エラー
 ```
 Error: Method 'send' is already defined in this box at line 15.
-  --> box.nyash:20:5
+  --> box.hako:20:5
    |
 20 |     send(msg) {
    |     ^^^^ duplicate method definition
@@ -174,7 +174,7 @@ Help: Remove duplicate definition or rename method.
 #### Missing Override エラー
 ```
 Error: Method 'send' overrides a parent method. Add 'override' keyword.
-  --> box.nyash:18:5
+  --> box.hako:18:5
    |
 18 |     send(intent, data, target) {
    |     ^^^^ missing 'override' keyword
@@ -185,7 +185,7 @@ Help: Change to 'override send(intent, data, target) {'
 #### Wrong Override エラー  
 ```
 Error: Method 'newMethod' does not exist in any parent. Remove 'override' keyword.
-  --> box.nyash:22:5
+  --> box.hako:22:5
    |
 22 |     override newMethod() {
    |     ^^^^^^^^ unnecessary 'override'
@@ -196,7 +196,7 @@ Help: Remove 'override' or verify parent method name.
 #### 曖昧Override エラー
 ```
 Error: Method 'process' exists in multiple parents. Specify which parent to override.
-  --> box.nyash:25:5
+  --> box.hako:25:5
    |
 25 |     override process(data) {
    |     ^^^^^^^^ ambiguous override