@gustavo/refactor/folders structure

[gustavobftorres]

Is this linked to an existing issue?
No linked issue for this migration.

Fill out the following table describing your edits:

Original	Updated	Change	Reasoning
Multiple existing Balancer query IDs	Same query IDs (no ID changes)	Migrated all SQL files from legacy folders (volume, liquidity, fees, tvl, revenue, token, governance, pools, dashboards) into new taxonomy under metrics/*, analysis/*, and support/*	Standardize repository organization and make classification explicit by metric, analysis type, and helper intent
Manifest entries in queries.yml	Same query IDs (no ID changes)	Updated category: for all migrated entries to match new destination paths	Keep manifest aligned with physical file locations and new structure
Repository docs	Same docs pages	Updated README.md, docs/DISCOVERY.md, and queries.yml inline examples/comments to reflect the new taxonomy	Ensure contributor guidance matches the migrated structure

Provide any other context or screenshots that explain or justify the changes above:

• This PR is a structural migration only: no SQL logic changes and no query ID changes.
• Full migration is now complete under balancer/{metrics,analysis,support,views}.
• Legacy Balancer folders were removed after migration.
• Validation passed after migration:
  • python3 scripts/validate.py -> All checks passed.

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Checklist:

• SQL file name follows descriptive_name_{queryId}.sql convention
• File includes -- part of a query repo header
• Query ID is listed in queries.yml
• SQLFluff passes locally (sqlfluff lint <file>)
• If adding a new query: created on dune.com first, then added to repo
• If adding new Jinja parameters: updated the relevant .sqlfluff context