fix(ci): strip ANSI codes from forge inspect output

Forge may prepend compilation progress messages with ANSI escape codes
to stdout. Extract only the hex bytecode (0x...) from the output and
pass NO_COLOR=1 to suppress colored output.

This fixes the false positive where GatewayConfig bytecode appeared
different between main and PR due to ANSI codes in the PR-side output.

Author: Eikix

ci/check-upgrade-hygiene.ts

@@ -4,7 +4,6 @@
 
 import { readFileSync, existsSync } from "fs";
 import { execSync } from "child_process";
-import { createHash } from "crypto";
 import { join } from "path";
 
 const [mainDir, prDir] = process.argv.slice(2);
@@ -32,10 +31,14 @@ function extractVersions(filePath: string) {
 
 function forgeInspect(contract: string, root: string): string | null {
   try {
-    return execSync(`forge inspect "contracts/${contract}.sol:${contract}" --root "${root}" deployedBytecode`, {
+    const raw = execSync(`forge inspect "contracts/${contract}.sol:${contract}" --root "${root}" deployedBytecode`, {
       encoding: "utf-8",
       stdio: ["pipe", "pipe", "pipe"],
-    }).trim();
+      env: { ...process.env, NO_COLOR: "1" },
+    });
+    // Extract hex bytecode — forge may prepend ANSI codes or compilation progress to stdout
+    const match = raw.match(/0x[0-9a-fA-F]+/);
+    return match ? match[0] : null;
   } catch (e: any) {
     if (e.stderr) console.error(String(e.stderr));
     return null;
@@ -90,31 +93,6 @@ for (const name of contracts) {
     }
 
     const bytecodeChanged = mainBytecode !== prBytecode;
-
-    if (bytecodeChanged) {
-      const sha = (s: string) => createHash("sha256").update(s).digest("hex").slice(0, 12);
-      console.log(`  main bytecode: len=${mainBytecode.length} sha=${sha(mainBytecode)}`);
-      console.log(`  PR   bytecode: len=${prBytecode.length} sha=${sha(prBytecode)}`);
-      // Find first divergence point
-      for (let i = 0; i < Math.min(mainBytecode.length, prBytecode.length); i++) {
-        if (mainBytecode[i] !== prBytecode[i]) {
-          console.log(`  first diff at offset ${i}: main=...${mainBytecode.slice(Math.max(0, i - 10), i + 10)}... pr=...${prBytecode.slice(Math.max(0, i - 10), i + 10)}...`);
-          break;
-        }
-      }
-      // Check key files match
-      for (const f of ["foundry.toml", "addresses/GatewayAddresses.sol"]) {
-        const mp = join(mainDir, f), pp = join(prDir, f);
-        const mh = existsSync(mp) ? sha(readFileSync(mp, "utf-8")) : "MISSING";
-        const ph = existsSync(pp) ? sha(readFileSync(pp, "utf-8")) : "MISSING";
-        console.log(`  ${f}: main=${mh} pr=${ph} ${mh === ph ? "MATCH" : "MISMATCH"}`);
-      }
-      // Check source files match
-      const mSrcHash = sha(readFileSync(mainSol, "utf-8"));
-      const pSrcHash = sha(readFileSync(prSol, "utf-8"));
-      console.log(`  ${name}.sol: main=${mSrcHash} pr=${pSrcHash} ${mSrcHash === pSrcHash ? "MATCH" : "MISMATCH"}`);
-    }
-
     const reinitChanged = mainV.REINITIALIZER_VERSION !== prV.REINITIALIZER_VERSION;
     const versionChanged =
       mainV.MAJOR_VERSION !== prV.MAJOR_VERSION ||