fix: remove contractErrors files accidentally merged into dev (#1923)

These files were part of PR #1911 (custom Solidity error decoding) which
is not yet merged. They were accidentally included in the #1905 squash
merge. The missing error-selector-map.json dependency breaks workspace
CI (build, lint, type-check) across all branches.

new-common/src/blockchain/contractErrors.test.ts

@@ -1,65 +0,0 @@
-import { describe, expect, it } from 'vitest';
-
-import { humanizeContractError } from './contractErrors.js';
-
-describe('humanizeContractError', () => {
-  it('decodes a known custom error selector', () => {
-    // 0xda7bd3a6 = InvalidVcAndDiscloseProof
-    expect(humanizeContractError('0xda7bd3a6')).toBe('Invalid Vc And Disclose Proof');
-  });
-
-  it('decodes a known SCREAMING_CASE selector', () => {
-    // 0x034acfcc = REGISTERED_COMMITMENT
-    expect(humanizeContractError('0x034acfcc')).toBe('Registered Commitment');
-  });
-
-  it('decodes Error(string) standard revert', () => {
-    // ABI encoding of Error("Insufficient balance")
-    const encoded =
-      '0x08c379a0' +
-      '0000000000000000000000000000000000000000000000000000000000000020' +
-      '0000000000000000000000000000000000000000000000000000000000000014' +
-      '496e73756666696369656e742062616c616e636500000000000000000000000000';
-    expect(humanizeContractError(encoded)).toBe('Insufficient balance');
-  });
-
-  it('decodes Panic(uint256) arithmetic overflow', () => {
-    const encoded =
-      '0x4e487b71' + '0000000000000000000000000000000000000000000000000000000000000011';
-    expect(humanizeContractError(encoded)).toBe('Arithmetic overflow or underflow');
-  });
-
-  it('decodes Panic(uint256) division by zero', () => {
-    const encoded =
-      '0x4e487b71' + '0000000000000000000000000000000000000000000000000000000000000012';
-    expect(humanizeContractError(encoded)).toBe('Division or modulo by zero');
-  });
-
-  it('decodes Panic(uint256) array out of bounds', () => {
-    const encoded =
-      '0x4e487b71' + '0000000000000000000000000000000000000000000000000000000000000032';
-    expect(humanizeContractError(encoded)).toBe('Array out of bounds');
-  });
-
-  it('decodes Panic(uint256) unknown code gracefully', () => {
-    const encoded =
-      '0x4e487b71' + '00000000000000000000000000000000000000000000000000000000000000ff';
-    expect(humanizeContractError(encoded)).toBe('Contract panic (code 255)');
-  });
-
-  it('returns original string for unknown selector', () => {
-    expect(humanizeContractError('0xdeadbeef')).toBe('0xdeadbeef');
-  });
-
-  it('returns original string for non-hex input', () => {
-    expect(humanizeContractError('something went wrong')).toBe('something went wrong');
-  });
-
-  it('returns original string for empty input', () => {
-    expect(humanizeContractError('')).toBe('');
-  });
-
-  it('handles mixed-case selector input', () => {
-    expect(humanizeContractError('0xDA7BD3A6')).toBe('Invalid Vc And Disclose Proof');
-  });
-});

new-common/src/blockchain/contractErrors.ts

@@ -1,71 +0,0 @@
-import { AbiCoder } from 'ethers';
-
-import selectorMap from '../data/error-selector-map.json' with { type: 'json' };
-
-const SELECTOR_RE = /^0x[0-9a-fA-F]{8}/;
-const ERROR_STRING_SELECTOR = '0x08c379a0';
-const PANIC_SELECTOR = '0x4e487b71';
-
-const PANIC_CODES: Record<number, string> = {
-  0x01: 'Assertion failed',
-  0x11: 'Arithmetic overflow or underflow',
-  0x12: 'Division or modulo by zero',
-  0x21: 'Invalid enum value',
-  0x22: 'Corrupted storage byte array',
-  0x31: 'Pop on empty array',
-  0x32: 'Array out of bounds',
-  0x41: 'Out of memory',
-  0x51: 'Invalid internal function call',
-};
-
-function formatErrorName(name: string): string {
-  if (name === name.toUpperCase() && name.includes('_')) {
-    return name
-      .split('_')
-      .map(word => word.charAt(0) + word.slice(1).toLowerCase())
-      .join(' ');
-  }
-  return name.replace(/([a-z])([A-Z])/g, '$1 $2').replace(/([A-Z]+)([A-Z][a-z])/g, '$1 $2');
-}
-
-/**
- * Converts a raw Solidity error string into a human-readable message.
- *
- * Handles:
- * - Standard Error(string): extracts the revert message
- * - Standard Panic(uint256): maps panic code to description
- * - Known custom error selectors from our contracts (auto-generated map)
- * - Unknown input: returned unchanged
- */
-export function humanizeContractError(raw: string): string {
-  if (!raw) return raw;
-
-  const lower = raw.toLowerCase();
-
-  if (lower.startsWith(ERROR_STRING_SELECTOR)) {
-    try {
-      const [message] = AbiCoder.defaultAbiCoder().decode(['string'], '0x' + raw.slice(10));
-      return message as string;
-    } catch {
-      return raw;
-    }
-  }
-
-  if (lower.startsWith(PANIC_SELECTOR)) {
-    try {
-      const [code] = AbiCoder.defaultAbiCoder().decode(['uint256'], '0x' + raw.slice(10));
-      const codeNum = Number(code);
-      return PANIC_CODES[codeNum] ?? `Contract panic (code ${codeNum})`;
-    } catch {
-      return raw;
-    }
-  }
-
-  if (SELECTOR_RE.test(raw)) {
-    const selector = lower.slice(0, 10);
-    const name = (selectorMap as Record<string, string>)[selector];
-    if (name) return formatErrorName(name);
-  }
-
-  return raw;
-}