Leiden treemap, insights pane, and Arrow loader hardening - #3
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- Treemap view over Leiden communities (in-process icebug Leiden, same family as GDS_LEIDEN) with squarified layout after disktree, PageRank-weighted tiles; header toggle switches graph/treemap - Collapsible right insights pane: top 10 nodes by PageRank plus the Leiden community summary; rows focus/select into the graph - backend: graphr_leiden_full, gds_leiden_communities readout, tests/gds_leiden.rs port of the extension's gds_leiden.test - loader: tiered CSR -> columnar Arrow -> row-wise id scans so a silent-empty fast path can never show 0 nodes; pin arrow to 55 to match lbug (arrow56 alias for the icebug arrays); tests/loader.rs plus an arrow-pin unit test locking the batch decode shape
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Treemap + insights pane
GDS_LEIDEN), squarified layout after disktree, tiles weighted by PageRank. Header Graph | Treemap toggle (⌘1/⌘2, View menu). Click selects, double-click drills into the 1-hop neighborhood. (Sunburst deliberately skipped — arc-heavy painting needs more GPUI scaffolding than rects.)⌘I, chevron divider, View menu): top 10 nodes by PageRank over the displayed graph + Leiden community summary with modularity. PageRank rows focus the neighborhood; community rows select and jump to the treemap.backend::graphr_leiden_full,backend::gds_leiden_communitiesreadout, andtests/gds_leiden.rsporting the extension'sgds_leiden.test(two cliques + bridge, gamma/bogus-param errors) with a no-extension local cross-check.Loader hardening (fixes "0 nodes" on transformers.lbdb)
downcast_refsilently decoded zero rows; plus some storage versions reportOkwith empty CSR arrays.collect_edge_graphis now tiered CSR → columnar Arrow → row-wise ids, each tier declining on error or empty success, so a silent-empty fast path can never hide the graph.arrowpinned to 55 to match lbug 0.21.x (single unified build); icebug 13.2.0's arrow-56 arrays live behind thearrow56alias.tests/loader.rscontract tests (exact counts, no dangling endpoints, empty-DB case) + abackendunit test locking the lbug batch decode shape against future arrow/field drift.Verification
transformers.lbdbloads 1440 nodes / 6285 edges via the Arrow tier.clippy0 warnings,fmtclean.