chore: remove CHANGELOG.md in favor of generated release notes

Author: thymikee

.github/workflows/android.yml

@@ -7,7 +7,6 @@ on:
       - 'website/**'
       - 'README.md'
       - 'AGENTS.md'
-      - 'CHANGELOG.md'
       - 'CONTEXT.md'
       - 'CONTRIBUTING.md'
       - 'LICENSE'

.github/workflows/ci.yml

@@ -7,7 +7,6 @@ on:
       - 'website/**'
       - 'README.md'
       - 'AGENTS.md'
-      - 'CHANGELOG.md'
       - 'CONTEXT.md'
       - 'CONTRIBUTING.md'
       - 'LICENSE'

.github/workflows/ios.yml

@@ -7,7 +7,6 @@ on:
       - 'website/**'
       - 'README.md'
       - 'AGENTS.md'
-      - 'CHANGELOG.md'
       - 'CONTEXT.md'
       - 'CONTRIBUTING.md'
       - 'LICENSE'

.github/workflows/linux.yml

@@ -7,7 +7,6 @@ on:
       - 'website/**'
       - 'README.md'
       - 'AGENTS.md'
-      - 'CHANGELOG.md'
       - 'CONTEXT.md'
       - 'CONTRIBUTING.md'
       - 'LICENSE'

.github/workflows/macos.yml

@@ -7,7 +7,6 @@ on:
       - 'website/**'
       - 'README.md'
       - 'AGENTS.md'
-      - 'CHANGELOG.md'
       - 'CONTEXT.md'
       - 'CONTRIBUTING.md'
       - 'LICENSE'

.github/workflows/size.yml

@@ -7,7 +7,6 @@ on:
       - 'website/**'
       - 'README.md'
       - 'AGENTS.md'
-      - 'CHANGELOG.md'
       - 'CONTEXT.md'
       - 'CONTRIBUTING.md'
       - 'LICENSE'

CHANGELOG.md

@@ -1,5 +1,5 @@
-// Regression pin for #1781 A9: the six root-level docs files
-// (AGENTS.md, CHANGELOG.md, CONTEXT.md, CONTRIBUTING.md, LICENSE, SECURITY.md)
+// Regression pin for #1781 A9: the five root-level docs files
+// (AGENTS.md, CONTEXT.md, CONTRIBUTING.md, LICENSE, SECURITY.md)
 // must stay in the `pull_request` `paths-ignore` list of every workflow that
 // also ignores `docs/**`/`website/**`/`README.md` — the four device lanes plus
 // `ci.yml` and `size.yml`. Nothing else derives this: `check:gate-manifest`
@@ -22,14 +22,7 @@ const repoRoot = path.resolve(import.meta.dirname, '../..');
 
 const WORKFLOWS = ['ios.yml', 'android.yml', 'linux.yml', 'macos.yml', 'ci.yml', 'size.yml'];
 
-const ROOT_DOCS = [
-  'AGENTS.md',
-  'CHANGELOG.md',
-  'CONTEXT.md',
-  'CONTRIBUTING.md',
-  'LICENSE',
-  'SECURITY.md',
-];
+const ROOT_DOCS = ['AGENTS.md', 'CONTEXT.md', 'CONTRIBUTING.md', 'LICENSE', 'SECURITY.md'];
 
 type WorkflowDoc = {
   // A bare `on:` key can parse as the boolean key `true` under YAML 1.1

test/ci/root-docs-paths-ignore.test.ts

@@ -167,8 +167,8 @@ flow runs at the speed the `.ad` script ran, rather than picking up Maestro's ow
 This is the process a public gesture input follows on its way out, and the bar the next removal has
 to clear:
 
-1. **Announce.** The input is documented as deprecated and recorded in `CHANGELOG.md` under
-   `Unreleased`, together with the replacement.
+1. **Announce.** The input is documented as deprecated, and the release notes name the
+   replacement.
 2. **Warn for one minor release.** The input keeps working and normalizes to the replacement, with a
    `deprecations` entry in the response so an agent sees the migration while the call still
    succeeds.