fix(revolut): remove blanket digit-prefix crypto classification

[GeiserX]

Summary

• Removes the overly broad heuristic that classified all symbols starting with digits as crypto
• Stock tickers like 65C were incorrectly placed under crypto (Modelo 721) instead of stocks (Modelo 720)
• 1INCH and other digit-prefixed crypto are already in the KNOWN_CRYPTO set, making the regex redundant

Test plan

• Added test verifying 65C is classified as STK
• Existing test confirms 1INCH still classified as CRYPTO (via KNOWN_CRYPTO set)
• All 85 Revolut parser tests pass

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: d2209f13-9085-4cd2-b2b8-6a86036e1da1

📥 Commits

Reviewing files that changed from the base of the PR and between 5301879 and a25377e.

📒 Files selected for processing (4)

• scripts/update-crypto-symbols.ts
• src/parsers/crypto-symbols.ts
• src/parsers/revolut.ts
• tests/parsers/revolut.test.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/revolut-65c-crypto-misclassification

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.63%. Comparing base (670e39c) to head (a25377e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #157      +/-   ##
==========================================
+ Coverage   97.62%   97.63%   +0.01%     
==========================================
  Files          37       38       +1     
  Lines        7585     7622      +37     
  Branches     1551     1549       -2     
==========================================
+ Hits         7405     7442      +37     
  Misses        179      179              
  Partials        1        1              

Files with missing lines	Coverage Δ
src/parsers/crypto-symbols.ts	100.00% <100.00%> (ø)
src/parsers/revolut.ts	98.43% <100.00%> (-0.06%)	⬇️

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