Add SHA-3 hash reporting support

[hanjav]

/claim #2

Summary

• Add client-side SHA-3-256 hashing via CryptoJS.SHA3(..., { outputLength: 256 })
• Surface SHA-3-256 in the bulk evidence table alongside MD5 and SHA-256
• Include SHA-3-256 in hash PDF, Word, CSV, and Excel exports
• Add a lightweight System Console that logs SHA-3 calculations as files are processed

Verification

• Parsed the inline JavaScript from index.html with new Function(...)
• Checked SHA-3 markers for table, calculation, exports, and console logging
• Confirmed there are no actual trailing spaces before newlines in the staged file