Fix Deno v2 bundler incompatibility in ASN.1 certificate decoding

[Copilot]

Deno v2's bundler renames internal ASN.1 class constructors (e.g., LocalSimpleStringValueBlock → LocalSimpleStringValueBlock2), breaking certificate parsing that relied on constructor.name string matching.

Changes

Refactored decodeValue() in lib/certUtils.js to use property-based type detection instead of constructor name strings:

Before:

function decodeValue(valueBlock) {
  const blockType = Object.getPrototypeOf(valueBlock).constructor.name;
  switch (blockType) {
    case "LocalSimpleStringValueBlock":
      return valueBlock.value;
    case "LocalIntegerValueBlock":
      return valueBlock.valueDec;
    // ... fails when bundler renames these classes
  }
}

After:

function decodeValue(valueBlock) {
  // Wrapper objects (OctetString, BmpString, Utf8String, Constructed)
  if ("valueBlock" in valueBlock && valueBlock.valueBlock) {
    const innerBlock = valueBlock.valueBlock;
    if ("value" in innerBlock && typeof innerBlock.value === "string") {
      return innerBlock.value;  // String types
    }
    // ... other wrapper types
  }
  
  // Value blocks
  if ("valueDec" in valueBlock) return valueBlock.valueDec;  // Integer
  if ("unusedBits" in valueBlock) return new Uint8Array(valueBlock.valueHex)[0];  // BitString
  // ... other value block types
}

Type detection now relies on structural properties that bundlers preserve:

• Integer blocks: presence of valueDec getter
• Bit strings: unusedBits + valueHex properties
• String types: value string property (checked before valueHex since both exist)
• Constructed blocks: value array property with explicit wrapper exclusion

CI Workflow Update:
Re-enabled deno task build in .github/workflows/test.yml to run the complete Deno build process including bundling and testing against bundled code, validating the fix in CI.

Fixes #178

Original prompt

Create a fork and have a look at the recent issue describing problems with new deno bundler.

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[Hexagon]

@copilot Re-enable deno task build in test ci

[Copilot]

@copilot Re-enable deno task build in test ci

Done. Re-enabled deno task build in both the test_deno job and the release job. The CI will now run the full build process including bundling and testing against bundled code. (commit 9bfeb53)