Merge latest hybrid reference map changes into benchmark

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: live1206

.chronus/changes/IgnoreGeneratedMetadataInDiffCheck-2026-5-19-20-15-30.md

@@ -0,0 +1,8 @@
+---
+# Change versionKind to one of: internal, fix, dependencies, feature, deprecation, breaking
+changeKind: internal
+packages:
+  - "@typespec/http-client-java"
+---
+
+Ignore modifications to META-INF metadata.json files

.chronus/changes/add-lossy-duration-tests-2026-6-23-9-24-23.md

@@ -0,0 +1,7 @@
+---
+changeKind: internal
+packages:
+  - "@typespec/http-client-python"
+---
+
+Add mock API test cases for encode/duration lossy scenarios (int32-seconds and int32-milliseconds) verifying that durations with fractional precision are serialized as integers

.chronus/changes/copilot-encode-string-boolean-changelog-2026-6-5-17-25-0.md

@@ -0,0 +1,16 @@
+---
+changeKind: feature
+packages:
+  - "@typespec/compiler"
+  - "@typespec/spec-api"
+  - "@typespec/http-specs"
+---
+
+Allow `@encode(string)` on boolean targets, define case-insensitive `true`/`false` string semantics, and add shared case-insensitive string matcher support with encode/boolean Spector coverage.
+
+```tsp
+model FeatureFlags {
+  @encode(string)
+  enabled: boolean;
+}
+```

.chronus/changes/data-decorators-2026-2-30-17-38-53.md

@@ -0,0 +1,8 @@
+---
+# Change versionKind to one of: internal, fix, dependencies, feature, deprecation, breaking
+changeKind: internal
+packages:
+  - "@typespec/html-program-viewer"
+---
+
+Data decorators

.chronus/changes/data-decorators-2026-3-30.md

@@ -0,0 +1,16 @@
+---
+changeKind: feature
+packages:
+  - "@typespec/compiler"
+---
+
+Added `auto` decorator modifier for declaring decorators that auto-store their arguments as metadata without requiring a JavaScript implementation.
+
+```typespec
+auto dec label(target: Model, value: valueof string);
+
+@label("my-model")
+model Foo {}
+```
+
+Added compiler API `hasAutoDecorator`, `getAutoDecoratorValue`, and `getAutoDecoratorTargets` for reading auto decorator values by FQN.

.chronus/changes/data-decorators-tspd-2026-3-30.md

@@ -0,0 +1,7 @@
+---
+changeKind: feature
+packages:
+  - "@typespec/tspd"
+---
+
+`tspd gen-extern-signature` now generates typed accessor functions for `auto` decorators (e.g., `isMyFlag`, `getMyLabel`).

.chronus/changes/fix-formatter-heritage-keyword-break-2026-6-18.md

@@ -0,0 +1,7 @@
+---
+changeKind: fix
+packages:
+  - "@typespec/compiler"
+---
+
+Keep the `is`/`extends` keyword on the declaration line when the base is a template reference with multiple arguments. The template argument list now controls the line breaking instead of the keyword being pushed onto its own indented line.

.chronus/changes/fix-formatter-heritage-keyword-break-java-2026-6-18.md

@@ -0,0 +1,7 @@
+---
+changeKind: internal
+packages:
+  - "@typespec/http-client-java"
+---
+
+Reformat a test spec affected by the compiler formatter change keeping `is`/`extends` inline for multi-argument template references (whitespace only, no semantic change).

.chronus/changes/fix-formatter-union-template-argument-2026-5-17-0-0-0.md

@@ -0,0 +1,7 @@
+---
+changeKind: fix
+packages:
+  - "@typespec/compiler"
+---
+
+Fix formatter inserting a blank line and over-indenting a `union` expression used directly as one of multiple template arguments (e.g. `PickProperties<Source, "a" | "b">`)

.chronus/changes/fix-formatter-union-template-argument-java-2026-5-17-0-0-0.md

@@ -0,0 +1,7 @@
+---
+changeKind: internal
+packages:
+  - "@typespec/http-client-java"
+---
+
+Reformat union template arguments in test files to match updated formatter style.