[BOUNTY] Attestation Data Export Pipeline (#49)

[TheFrogEcliptia]

[BOUNTY] Attestation Data Export Pipeline (#49)

Data export tool for reporting and network analysis.

Features:

• Extracts miner logs and balances via the official API.
• Supports CSV and JSON formats.
• Facilitates trend analysis and compliance auditing.

Closes #49

[Scottcjn]

Closing for now: export tool submission does not meet full scope (formats/range options/evidence).

Please keep participating. To be payout-eligible on resubmission:

1. Map directly to an active bounty issue and claim in that thread
2. Submit focused, non-duplicate changes
3. Include working proof (logs/screenshots/test notes)
4. Keep PR merge-ready (clean diff, no encoding regressions, no placeholder code)

Good active options right now: #99 (challenge), #100 (discovery), #102 (capability), #103 (social), #124 (profile micro-bounty).