v0.9.34

Correctness release: a C# receiver-typing regression fix, direction-respecting shortest paths, and a set of hyperedge merge/load integrity fixes.

- Fix: C# receiver typing no longer drops a true call when a same-named variable is declared untypeably elsewhere in the method (#2472, thanks @JensD-git). Receiver types are now tracked per lexical declaration scope and resolved by the call's position, so a typed `static` local-function parameter keeps resolving even when an `out var` reuses the name in the enclosing body. This fixes a regression from 0.9.32 (#2346). Cross-method independence (#2299) and field-conflict poisoning are unchanged; an `out var` receiver itself remains untyped.
- Fix: `graphify path` (and the MCP `shortest_path` tool) now respect edge direction by default instead of running on an undirected view, so a returned path no longer traverses edges backwards (#2487, thanks @luliaz0601). Direction is recovered from the stored `_src`/`_tgt` markers. Pass `--undirected` (CLI) or `undirected=true` (MCP) to search ignoring direction; when no directed path exists the command says so instead of silently returning a reversed one.
- Fix: semantic extraction no longer aborts at merge with a `TypeError` when a hyperedge carries dict-shaped members (#2486, thanks @adminwat). Members are normalized to ids (or dropped with a warning) so a malformed hyperedge can no longer destroy a completed extraction.
- Fix: `graphify merge-graphs` no longer drops hyperedges (#2484, thanks @sortakool, and @oleksii-tumanov for the approach in #1691). Hyperedge member ids and ids are now relabeled with the per-repo prefix, both inputs' hyperedges are unioned instead of one clobbering the other, and they are written to both the top-level and nested slots.
- Fix: `build_from_json` now reads hyperedges from both the top-level and nested `graph` slots, so label and re-cluster runs no longer silently empty a graph's hyperedge set (#2485, thanks @sortakool); a full validation wipeout is now reported loudly.
- Fix: the skill flow now passes the curated community labels to `to_json`, so `graph.json` ships with `community_name` on nodes instead of dropping it (#2490, thanks @PapiScholz).