Add read_waterdata_nearest_continuous helper#881

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thodson-usgs wants to merge 7 commits intoDOI-USGS:developfrom

thodson-usgs:feat/nearest-continuous

Commits on Apr 22, 2026

Add CQL filter passthrough to OGC waterdata functions

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Commits on Apr 23, 2026

Tighten CQL filter chunking: URL byte budget, cql-text guard, empty-frame handling

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Extract filter chunking into plan_/fetch_/combine_ helpers

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Add read_waterdata_nearest_continuous helper

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Switch `window` default to an HH:MM:SS string

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Shorten window default to "07:30" and accept ISO 8601 duration strings

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Use ISO 8601 `"PT7M30S"` as the window default

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