doc: update docs on snapshot service

[hanabi1224]

Summary of changes

To reflect the v2 snapshot rollout in #6115

Changes introduced in this pull request:

Reference issue to close (if applicable)

Closes

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation. All new code adheres to the team's documentation standards,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.

Summary by CodeRabbit

• Documentation
  • Expanded the Latest Filecoin Snapshots section with richer download links and clearer guidance.
  • Added instructions to get the latest snapshots by version: v2 as default, plus separate links for v1/v2 on mainnet and calibnet.
  • Clarified that v2 snapshots include F3 data and linked to FRC-0108 for details.
  • Replaced network-specific links with a single snapshots site link to browse availability, improving discoverability and reducing confusion.

[coderabbitai]

Walkthrough

Updated the Filecoin services documentation to expand the Latest Snapshots section: added explicit download links for v1/v2 across mainnet/calibnet, clarified that v2 includes F3 data with an FRC-0108 reference, and introduced a general site link for snapshot availability.

Changes

Cohort / File(s)	Summary of changes
Docs: Filecoin snapshots section docs/docs/users/filecoin_services.md	Rewrote snapshot section to include distinct v1/v2 links for mainnet/calibnet, noted v2 contains F3 data with FRC-0108 reference, and added a general snapshot site link.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Suggested reviewers

• elmattic
• LesnyRumcajs
• akaladarshi

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check	✅ Passed	The title “doc: update docs on snapshot service” concisely captures the primary change of the PR by indicating an update to the documentation for the snapshot service rollout and download options without unnecessary detail or noise.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch hm/update-docs-on-snapshot-service

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 4661ae8 and cd17715.

📒 Files selected for processing (1)

• docs/docs/users/filecoin_services.md (1 hunks)

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