feat(meos): W21 codegen — tcbuffer nad (nearest-approach distance) (3 ops + 1 systest) (stacks on #41)#42

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estebanzimanyi:feat/nebula-codegen-w21-tcbuffer-nad

Commits on May 21, 2026

feat(berlinmod): scaffold the full BerlinMOD-9 × 3-form parity matrix on NebulaStream (33 YAMLs, 27/27 cells)
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feat(meos): TEMPORAL_LENGTH aggregation closes BerlinMOD-Q6 streaming-form cells to full
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feat(meos): PAIR_MEETING + CROSS_DISTANCE aggregations close Q5 + Q9 streaming-form cells to full
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docs(berlinmod): streaming-semantics tier overlay + remove stale 'Not covered' section
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feat(meos): parameterize PAIR_MEETING dMeet via SQL constant fifth arg
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feat(meos): parameterize CROSS_DISTANCE (vidA, vidB) via SQL constant args
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tools(codegen): MEOS-operator generator + design proposal for Nebula codegen path
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fix(meos): proto extra_fields + Werror unused-param in aggregations
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feat(meos): W1 codegen output — 5 spatial-relation operators (tgeo × geom)
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feat(meos): W2 codegen output — close the _tgeo_geo spatial-rel row
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feat(meos): W3 codegen output — closes the _tgeo_tgeo spatial-rel row (9 ops)
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feat(meos): W4 codegen — distance family (nad + dwithin, 5 ops + 2 templates)
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Commits on May 22, 2026