chore: re-vendor canonical files from prompts at dd4027b (closes #472)

Copies .dockerignore, .gitignore, .prettierignore, check.yml and
REPO_POLICIES.md from sneak/prompts at dd4027b, keeping the repo's own
entries (dist/, release/, yarn files) after the canonical content.

The Dockerfile gets separate lint and test phases; its last stage
depends on both, checks the git describe version and runs make build.
script/lint, test, check, cibuild and docker are the canonical models.
check-censored moves into the lint phase and test-verify-build into the
test phase. fmt and fmt-check fall back to the nvm-installed node. The
e2e image builds are uncached. Comments citing the old test caps or what
runs a script are updated.

Model: opus-5-5

tests/balanceLineEscaping.test.js

@@ -5,7 +5,7 @@
 //
 // The browser half of the same claim — that a real Chrome renders that
 // string as text and puts no iframe in the popup DOM — is in
-// tests/e2e/run.js. This half runs inside the 20-second make test cap.
+// tests/e2e/run.js. This half runs inside the 60-second make test cap.
 
 "use strict";
 

tests/dustThreshold.test.js

@@ -105,7 +105,7 @@ describe("the flash line the message is shown in", () => {
     // "a rejected dust threshold shifts no layout (#233)" and "an over-long
     // flash message keeps to one line (#252)" in tests/e2e/run.js, run by
     // make test-e2e. They are not in make check because REPO_POLICIES.md
-    // caps make test at 20 seconds and a browser suite does not fit.
+    // caps make test at 60 seconds and a browser suite does not fit.
     test("reserves its height in the markup", () => {
         const flashLine = POPUP_HTML.match(
             /<div\s+id="flash-msg"\s+class="([^"]*)"/,

tests/e2e/firefox/run.js

@@ -8,7 +8,7 @@
 //   node tests/e2e/firefox/run.js [dist/firefox]
 //
 // Deliberately not part of script/check, and deliberately not named
-// *.test.js: REPO_POLICIES.md caps make test at 20 seconds and a browser
+// *.test.js: REPO_POLICIES.md caps make test at 60 seconds and a browser
 // suite does not fit.
 //
 // This shares no driver layer with the Chrome suite in tests/e2e/, and the

tests/e2e/harness.js

@@ -4,7 +4,7 @@
 //
 // This runs inside the pinned Playwright container; see script/test-e2e.
 // It is deliberately NOT part of make check — REPO_POLICIES.md caps
-// make test at 20 seconds and a browser suite does not fit.
+// make test at 60 seconds and a browser suite does not fit.
 
 "use strict";
 

tests/e2e/run.js

@@ -4,7 +4,7 @@
 //
 // A plain runner rather than jest on purpose: jest's default testMatch
 // would pull these files into script/test, and browser tests do not fit
-// inside the 20-second cap REPO_POLICIES.md puts on make test. Nothing
+// inside the 60-second cap REPO_POLICIES.md puts on make test. Nothing
 // here is named *.test.js for the same reason.
 
 "use strict";

tests/phishingDomains.test.js

@@ -45,9 +45,9 @@ describe("vendored blocklist", () => {
         // than loudly, so the ordering the search depends on is asserted here
         // against the committed file rather than assumed of the generator.
         // One assertion at the end rather than one per entry: 100k+ expect()
-        // calls cost seconds, and make test is capped at 30 for the whole
-        // suite. The index of the first offender is reported, so a failure
-        // still says where.
+        // calls cost seconds, and make test is capped at 60 seconds for the
+        // whole suite. The index of the first offender is reported, so a
+        // failure still says where.
         let previous = "";
         let outOfOrderAt = -1;
         for (let i = 0; i < vendored.count; i++) {

tests/vault.test.js

@@ -12,8 +12,8 @@
 // interactive parameters, which the module hardcodes. The parameters are not
 // weakened or overridden anywhere in this file — they are pinned by the "key
 // derivation cost" tests, since they are the vault's only defence against an
-// offline attack on a stolen blob. The suite is kept inside script/test's
-// 30-second budget by sharing one encrypted fixture across the tamper cases
+// offline attack on a stolen blob. The suite is kept inside the 60-second
+// make test cap by sharing one encrypted fixture across the tamper cases
 // instead of re-encrypting per test.
 
 const sodium = require("libsodium-wrappers-sumo");