chore: remove retired release branch references

.github/ISSUE_TEMPLATE/config.yml

@@ -4,7 +4,7 @@ contact_links:
     url: https://github.com/lidge-jun/opencodex/security/advisories/new
     about: Report undisclosed vulnerabilities privately to the maintainers. Do not open a public issue.
   - name: Security policy
-    url: https://github.com/lidge-jun/opencodex/blob/main/SECURITY.md
+    url: https://github.com/lidge-jun/opencodex/blob/dev/SECURITY.md
     about: Read the supported-version and reporting guidance before sharing security-sensitive details.
   - name: Contributing guide
     url: https://opencodex.me/contributing/

.github/scripts/enforce-pr-target.test.cjs

@@ -165,24 +165,23 @@ describe("enforce-pr-target workflow", () => {
       .split("- name: Checkout trusted PR-quality scripts")[1]
       .split(/\n {6}- name:/)[0];
     assert.match(checkoutStep, /actions\/checkout@[0-9a-f]{40}/);
-    // The trusted ref comes from a fixed set of integration branches, never
-    // from the PR's own base commit: a stacked child's base is another open
-    // PR's head, and `base.sha` would let that unpromoted commit choose the
-    // code that runs with this job's write-capable token.
+    // The trusted ref is the single integration branch, never the PR's own
+    // base commit: a stacked child's base is another open PR's head, and
+    // `base.sha` would let that unpromoted commit choose the code that runs
+    // with this job's write-capable token.
     //
     // `status` has no pull_request payload and sources from the default branch
-    // that supplied the privileged workflow. A `main`-targeting PR sources
-    // from `main` so the workflow definition and the scripts match. Everything
-    // else resolves to `dev`.
+    // that supplied the privileged workflow. Every pull_request event resolves
+    // to `dev`, the only integration branch.
     //
-    // Exact equality, not fragment matching: separate checks for `status`,
-    // `main`, and `dev` would all pass with the operator grouping wrong or a
-    // surviving `base.sha` fallback.
+    // Exact equality, not fragment matching: separate checks for `status` and
+    // `dev` would both pass with the operator grouping wrong or a surviving
+    // `base.sha` fallback.
     const ref = checkoutStep.match(/^\s*ref:\s*(.+)$/m)?.[1];
     assert.ok(ref, "trusted checkout must declare ref");
     assert.equal(
       ref.replace(/\s+/g, " ").trim(),
-      "${{ github.event_name == 'status' && github.event.repository.default_branch || (github.event.pull_request.base.ref == 'main' && 'main' || 'dev') }}",
+      "${{ github.event_name == 'status' && github.event.repository.default_branch || 'dev' }}",
     );
     assert.doesNotMatch(ref, /base\.sha|head\.(?:sha|ref)/);
     // Pinning the checkout ref only gates one step. A later `run:` or
@@ -215,7 +214,7 @@ describe("enforce-pr-target workflow", () => {
     const checkouts = workflow.match(/uses:\s*actions\/checkout@[\s\S]*?(?=\n {6}- name:|$)/g) ?? [];
     for (const step of checkouts) {
       const stepRef = (step.match(/^\s*ref:\s*(.+)$/m)?.[1] ?? "").replace(/\s+/g, " ").trim();
-      assert.equal(stepRef, "${{ github.event_name == 'status' && github.event.repository.default_branch || (github.event.pull_request.base.ref == 'main' && 'main' || 'dev') }}", "every checkout must use the trusted ref");
+      assert.equal(stepRef, "${{ github.event_name == 'status' && github.event.repository.default_branch || 'dev' }}", "every checkout must use the trusted ref");
       assert.doesNotMatch(step, /repository:/, "a checkout must not retarget its repository");
     }
     // Checkout is not the only way to obtain PR-controlled code. A `run:` step

.github/scripts/pr-hygiene.test.cjs

@@ -314,7 +314,7 @@ describe("pr-hygiene workflow trust boundary", () => {
     assert.ok(ref, "trusted checkout must declare ref");
     assert.equal(
       ref.replace(/\s+/g, " ").trim(),
-      "${{ github.event.pull_request.base.ref == 'main' && 'main' || 'dev' }}",
+      "dev",
     );
     // A stacked child PR's base is another open PR's head; neither a base nor
     // a head ref may select the code that runs with the write-capable token.
@@ -355,7 +355,7 @@ describe("pr-hygiene workflow trust boundary", () => {
     const checkouts = workflow.match(/uses:\s*actions\/checkout@[\s\S]*?(?=\n {6}- name:|$)/g) ?? [];
     for (const step of checkouts) {
       const stepRef = (step.match(/^\s*ref:\s*(.+)$/m)?.[1] ?? "").replace(/\s+/g, " ").trim();
-      assert.equal(stepRef, "${{ github.event.pull_request.base.ref == 'main' && 'main' || 'dev' }}", "every checkout must use the trusted ref");
+      assert.equal(stepRef, "dev", "every checkout must use the trusted ref");
       assert.doesNotMatch(step, /repository:/, "a checkout must not retarget its repository");
     }
     // Checkout is not the only way to obtain PR-controlled code. A `run:` step

.github/scripts/pr-quality-messages.cjs

@@ -274,17 +274,7 @@ function buildFailureSections(failures, { pr, allowedBases, defaultBase }) {
       "",
       `This pull request currently targets ${inlineCode(pr.base.ref)}, but pull requests must target one of ${allowedBases.map(inlineCode).join(" or ")}.`,
       "",
-      `@${pr.user.login} Please retarget this PR to ${inlineCode(defaultBase)}. All contributions go to ${inlineCode(defaultBase)}; \`main\` receives only release promotions. See our [Contributing guide](https://lidge-jun.github.io/opencodex/contributing/) for details. Thanks! 🙏`
-    );
-  }
-
-  if (failures.some(failure => failure.code === "wrong_ancestry")) {
-    sections.push(
-      "⚠️ **Wrong branch ancestry**",
-      "",
-      `This pull request targets ${inlineCode(pr.base.ref)}, but its head appears to sit on the current ${inlineCode("main")} tip while being far behind ${inlineCode(pr.base.ref)}.`,
-      "",
-      `@${pr.user.login} Rebase onto the current ${inlineCode(pr.base.ref)} branch instead of opening from ${inlineCode("main")}. That keeps already-released commits out of the integration branch.`
+      `@${pr.user.login} Please retarget this PR to ${inlineCode(defaultBase)}. All contributions go to ${inlineCode(defaultBase)}. See our [Contributing guide](https://lidge-jun.github.io/opencodex/contributing/) for details. Thanks! 🙏`
     );
   }
 
@@ -322,9 +312,6 @@ function failureSummary(failures, { pr }) {
       if (failure.code === "wrong_base") {
         return `wrong base (${pr.base.ref})`;
       }
-      if (failure.code === "wrong_ancestry") {
-        return "wrong ancestry";
-      }
       if (failure.code === "bad_description") {
         return `bad description (${failure.reason})`;
       }

.github/scripts/pr-quality-messages.test.cjs

@@ -143,19 +143,17 @@ describe("buildFailureSections", () => {
     assert.match(sections, /@contributor Please retarget this PR to `dev`/);
   });
 
-  it("builds ancestry, description, and screenshot sections", () => {
+  it("builds description and screenshot sections", () => {
     const sections = buildFailureSections(
       [
-        { code: "wrong_ancestry" },
         { code: "bad_description", reason: "empty" },
         { code: "missing_ui_screenshot" }
       ],
       { pr: PR, allowedBases: ALLOWED_BASES, defaultBase: DEFAULT_BASE },
     ).join("\n");
-    assert.match(sections, /Wrong branch ancestry/);
     assert.match(sections, /Pull request description/);
     assert.match(sections, /UI screenshot required/);
-    assert.match(sections, /Rebase onto the current `main`/);
+    assert.doesNotMatch(sections, /Wrong branch ancestry/);
   });
 });
 
@@ -165,14 +163,13 @@ describe("failureSummary", () => {
       failureSummary(
         [
           { code: "wrong_base" },
-          { code: "wrong_ancestry" },
           { code: "bad_description", reason: "empty" },
           { code: "missing_ui_screenshot" },
           { code: "mystery" }
         ],
         { pr: PR },
       ),
-      "wrong base (main); wrong ancestry; bad description (empty); missing UI screenshot; mystery",
+      "wrong base (main); bad description (empty); missing UI screenshot; mystery",
     );
   });
 });

.github/scripts/pr-quality.cjs

@@ -12,9 +12,6 @@ const { READINESS_LATEST_DEV_BEHIND_MAX } = require(
   path.join(__dirname, "pr-quality-state.cjs")
 );
 
-const ANCESTRY_BEHIND_THRESHOLD = 20;
-/** Cap on ahead_by vs main so stale `dev` forks (many commits ahead of main) are not flagged. */
-const ANCESTRY_AHEAD_MAIN_MAX = 5;
 const MIN_SECTION_LEN = 40;
 const MIN_RICH_SECTIONS = 2;
 const UNSTRUCTURED_MIN_LEN = 120;
@@ -106,20 +103,6 @@ const MARKDOWN_REFERENCE_DEF_RE = /^\s*\[([^\]]+)\]:\s*\S+/gm;
 /** Embedded HTML image with a renderable `src` (`<img ... src="...">`). */
 const HTML_IMAGE_RE = /<img\b[^>]*\bsrc\s*=\s*(?:"[^"]+"|'[^']+'|[^\s>"']+)[^>]*>/i;
 
-function isWrongAncestry({
-  behindMain,
-  behindBase,
-  aheadMain = 0,
-  threshold = ANCESTRY_BEHIND_THRESHOLD,
-  aheadMainMax = ANCESTRY_AHEAD_MAIN_MAX,
-}) {
-  return (
-    behindMain === 0 &&
-    behindBase >= threshold &&
-    aheadMain <= aheadMainMax
-  );
-}
-
 function authorHasPushPermission(permission) {
   return permission === "admin" || permission === "maintain" || permission === "write";
 }
@@ -528,12 +511,6 @@ function collectPrQualityFailures({
   allowedBases,
   title = "",
   body,
-  behindMain,
-  behindBase,
-  aheadMain = 0,
-  authorPermission,
-  permissionLookupFailed = false,
-  ancestryLookupFailed = false,
   /** True when baseRef is another open PR's head (stacked child). */
   stackedBase = false,
   /** Issue comments; a maintainer comment waives the GUI-screenshot gate. */
@@ -550,21 +527,6 @@ function collectPrQualityFailures({
   const wrongBase = !allowedBases.includes(baseRef) && !stackedBase;
   if (wrongBase) {
     failures.push({ code: "wrong_base" });
-  } else {
-    // Permission lookup fails closed (still evaluate ancestry). Compare API
-    // failures skip ancestry — zeros would falsely pass the #644 heuristic.
-    // Stacked children skip ancestry against the integration base; their parent
-    // PR is the temporary target.
-    const skipAncestry =
-      stackedBase ||
-      ancestryLookupFailed ||
-      (!permissionLookupFailed && authorHasPushPermission(authorPermission));
-    if (
-      !skipAncestry &&
-      isWrongAncestry({ behindMain, behindBase, aheadMain })
-    ) {
-      failures.push({ code: "wrong_ancestry" });
-    }
   }
 
   const desc = assessPrDescription(body);
@@ -587,12 +549,9 @@ function collectPrQualityFailures({
 }
 
 module.exports = {
-  ANCESTRY_BEHIND_THRESHOLD,
-  ANCESTRY_AHEAD_MAIN_MAX,
   REVIEW_READINESS_ITEMS,
   REVIEW_READINESS_START,
   REVIEW_READINESS_END,
-  isWrongAncestry,
   authorHasPushPermission,
   assessPrDescription,
   guiPathsChanged,