feat(web): multi-select relationship-type + ontology filters

[aaronsb]

What

Wires UI + filter application for the universal relationshipTypes / ontologies filters (Task #20). The shared graphStore already declared these fields (string[], default []); this completes them, mirroring the existing universal minConfidence pattern.

Changes

• graphStore: filterOptions {relationshipTypes, ontologies} + setter — the available values (vs filters.* = selected). Ephemeral, not persisted.
• ForceGraph: publishes distinct e.type / n.category from the engine data (same strings the filter compares against — raw API data would mismatch since the raw→engine transform maps empty ontology to 'Unknown'). filteredData now narrows by relationship type (edges) and ontology (nodes, dropping orphaned edges). Empty = show all.
• SettingsPanel: two checkbox-lists in the Filters section; options from filterOptions, selection via setFilters — same shared-store, universal-across-explorers model as minConfidence.

Scope

• Force Graph + universal store, per the task. Document Explorer parity (separate data path) deferred.
• No select-all/none control (not requested).
• Pre-existing eslint debt in touched files (unused RawGraphNode/RawGraphLink, onNodeClick, mergeRawGraphData, one any) left as-is — not introduced here, not CI-gated, out of scope.

Verification

• tsc --noEmit clean, 10/10 web tests pass, no new lint errors.
• Browser verification pending (filter a loaded graph by relationship type / ontology in the Force Graph settings panel; confirm it also reflects in other explorers reading the shared store).

[aaronsb]

Code Review — PR #369

What this changes: Wires UI + filter application for the already-declared filters.relationshipTypes / filters.ontologies shared-store fields, mirroring the universal minConfidence / visibleEdgeCategories pattern. Adds ephemeral filterOptions (available values + rendered colour) published by the active explorer, colour-faithful checkbox selectors with select all/none, and orphaned-edge dropping when ontology filtering removes nodes. +159/−10, 3 files, all web/src/.

Assessment: Solid, faithful to stated intent. Verified clean: tsc --noEmit passes, 10/10 tests pass, exactly 5 eslint errors — all on lines outside this PR's diff hunks (graphStore.ts:23/246, ForceGraph.tsx:41/76), so the documented pre-existing baseline of 5 is preserved with no new errors.

Correctness — verified sound

• Option-string ↔ filter-target match: The publish effect derives options from engine data (e.type, n.category) — the exact same strings filteredData compares against. Deriving from raw API data would mismatch (raw→engine normalizes empty ontology to 'Unknown'). Correct, and the rationale is well-documented in-code.
• Colour fidelity: relationship-type colour getCategoryColor(vocabStore.getCategory(value) || undefined) mirrors the edgeColors 'type' branch (ForceGraph.tsx:266–267) line-for-line; ontology colour palette(value) matches the node base colour (palette(n.category), :296). Swatches will match the screen.
• Orphaned-edge drop: EngineEdge.from/.to are node-id strings (types.ts:33/35), so keptIds.has(e.from) / keptIds.has(e.to) is the right identity check. keptIds only built when an ontology filter is active — correct short-circuit.
• No render-loop / thrash: palette is useMemo-keyed on data?.nodes; vocabStore is the no-selector whole-store ref (stable unless vocab state changes — pre-existing convention also used by edgeCategory/edgeColors). Effect deps [data, setFilterOptions, vocabStore, palette] are complete; setFilterOptions is a stable zustand action. The effect does not depend on filterOptions, so setting it cannot re-trigger the effect.
• filteredData memo: dep array complete (edgeCategory is useCallback-stable). Empty selection = show all, consistent with minConfidence/visibleEdgeCategories convention.
• FilterOption type: exported from graphStore.ts, imported as type in SettingsPanel — correct placement (lives with the store slice it describes).
• SettingsPanel: React key={opt.value} is stable/unique; controlled-checkbox toggle logic (checked ? filter-out : append) is correct; the none button writing [] is the documented "show all" convention.
• Persistence: confirmed partialize (graphStore.ts:617) persists only explorationSession + similarityThreshold — filters is not persisted, so it resets to defaults (empty = show all) on reload. No stale-cross-dataset "everything hidden" hazard. filterOptions ephemerality is coherent with the whole filters slice being ephemeral. PR description's "partialize unchanged" is accurate.

Non-blocking suggestions (consider for #370 or a follow-up)

1. setFilterOptions allocates a fresh object every effect run even when distinct values/colours are unchanged (e.g. data/palette ref change with identical content). SettingsPanel reads filterOptions via a single selector, so each run forces a SettingsPanel re-render. Not a loop — just churn. A shallow-equal guard before setFilterOptions (or keying the effect on data?.nodes/data?.edges instead of whole data) would eliminate it. Pure polish.
2. No direct test for the new filteredData ontology/orphan paths or the publish effect. Consistent with the existing untested minConfidence filter, so not a gate — but a small memo-level unit test (ontology filter drops nodes + orphaned edges; empty = passthrough) would lock in the orphan-drop invariant cheaply.

Quality / SOLID

checkboxList is a focused render helper (~55 lines, single responsibility, no added nesting depth). graphStore additions are minimal and follow the existing slice shape. No file-length / monolith concerns introduced. Scope is disciplined — the deferred pin/colour-scheme/Legend-reconciliation work is correctly held to #370, no creep observed. Known deferrals (Legend edge-category duplication, none=show-all vs true hide-all, Document Explorer parity, pre-existing eslint debt) are explicitly tracked and out of scope here.

Recommendation: merge-with-followups

Wiring is correct and faithful to the documented intent; types/tests/lint all clean against baseline; deferrals are explicit and bounded. The two non-blocking items (re-render churn, missing memo test) are good candidates to fold into #370 or a quick follow-up but do not gate this merge.

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AI-assisted review via Claude Code (code-reviewer)