[freebenweintraub]

The production /explorer/all page discarded all chart data when the Pinto REST API returned HTTP 502, even though subgraph price history was available. After API service recovery, reloading the page exposed a second failure: Cannot read properties of undefined (reading 'value') when a market token has shorter or missing price history.

This change:

• Lets subgraph charts render without waiting for APY, Tractor, or inflow results, with an availability notice when an enabled API query fails.
• Omits unavailable APY and market points instead of plotting missing data as zero.
• Guards missing Tractor snapshots and market history entries, and reads fallback market season/timestamp metadata from the actual response shape.
• Preserves legend positions for mixed available/unavailable chart selections.

Validation:

• Regression tests reproduced the all-or-nothing readiness failure, legend value compaction, and missing market history crash before fixes.
• yarn test: 116 tests pass across 8 files.
• yarn format-and-lint: passes (existing advisory diagnostics remain).
• yarn build: passes (existing dependency annotation and bundle-size warnings remain).
• Read-only code review: no remaining blocking findings.

Operational context: the API container was separately restarted after its previously failing subgraph dependency recovered. Health, full Tractor/inflow history, and all three APY history windows now return HTTP 200 through season 17028. Historical APY gaps remain outside this frontend change. This PR has not been deployed, and the production All page still needs the frontend fix.

Prepared with OpenAI Codex.

[netlify]

👷 Deploy request for pintomoney pending review.

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