chore(deps): bump LocalAGI/LocalRecall — go-pdfium WASM PDF extractor

LocalRecall switched its PDF extractor from gen2brain/go-fitz (cgo +
static libmupdf) to klippa-app/go-pdfium with the WebAssembly backend
(no cgo, no static libs, no glibc symbol issues). This bump pulls in
the new shape via LocalAGI@main → LocalRecall@a7724fe.

Why this matters: the previous go-fitz approach broke aarch64 LocalAI
builds with `__isoc23_strtol undefined reference` link errors —
go-fitz's bundled libmupdf static library is compiled against
glibc ≥ 2.38 (C2x strtol intrinsics) but the LocalAI builder uses
older glibc. The WASM backend has no native dependencies; same Go
binary works on every architecture.

Indirect graph: drops gen2brain/go-fitz, ebitengine/purego,
jupiterrider/ffi; adds klippa-app/go-pdfium + tetratelabs/wazero.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>