v6.4.0

Added

• npm DocxSession find-by surface (issue #171). The TypeScript wrapper at npm/src/session.ts now exposes the six DocxSession methods whose bridge shells landed in #168 but were unreachable from the typed API: exists, findByText, findAllByText, findByRegex, and findByKind (replaceMatch was already present). New FindOptions type in npm/src/types.ts (ignoreCase / ignoreWhitespace / kindFilter / scopes / scopeFilter, matching the .NET FindOptions record), and the corresponding Exists / FindByText / FindAllByText / FindByRegex / FindByKind signatures added to the DocxSessionBridge exports interface. Wire shapes are byte-identical to what tools/python-host consumes, preserving the cross-transport parity invariant. Tests: npm/tests/find-by.spec.ts exercises the typed wrapper (via a new window.Docxodus.openTypedSession harness helper backed by an IIFE-bundled session.ts), covering case-sensitive/insensitive text search, broad-pattern regex, kind+scope filtering, existence probes, and the grep → replaceMatch round-trip.

Fixed

• Python FindOptions scope filtering was a silent no-op. In docx_scalpel, FindOptions exposed a single scope_filter: ProjectionScopes field and serialized it as an int under the scopeFilter wire key. But the stdio host (and WASM bridge) parse scopeFilter as a string (a single named part like "hdr1") and read the coarse ProjectionScopes flag set from a separate scopes (number) key — which the wrapper never emitted. The net effect: find_by_text / find_all_by_text / find_by_regex ignored any scope restriction passed from Python and always searched all scopes. FindOptions now mirrors the .NET record's two distinct controls: scopes: ProjectionScopes | None (coarse category flag set → wire scopes, int) and scope_filter: str | None (fine named-part post-filter → wire scopeFilter, string). API change: scope_filter is now a str (was ProjectionScopes); callers that want category filtering should use the new scopes field (e.g. FindOptions(scopes=ProjectionScopes.HEADERS | ProjectionScopes.FOOTERS)). Tests: python/tests/test_find_options_scopes.py pins the wire mapping and verifies scopes=ProjectionScopes.BODY actually drops a footnote-scope hit on HC031.