v0.8.51

- Fix: the Obsidian export (`--obsidian` / `to_obsidian`) no longer overwrites a user's own notes or `.obsidian/` config when pointed at an existing vault (#1506). It wrote one note per node straight into the target dir and unconditionally replaced `.obsidian/graph.json`, so `--obsidian-dir ~/my-vault` could clobber a same-named note (`Database.md`) and the user's graph-view settings — silently, no backup. graphify now records the files it owns in a `.graphify_obsidian_manifest.json` and refuses to overwrite any pre-existing file it didn't create (skipping it with one aggregated warning); a re-run still updates graphify's own notes. The default `graphify-out/obsidian` output is unchanged.
- Fix: Java enum and annotation (`@interface`) declarations are now emitted as type nodes (#1512, thanks @oleksii-tumanov), so a field typed as an enum or a class annotated with a project annotation resolves to a real node instead of a dangling reference.
- Fix: Java generic parent relationships are no longer dropped (#1510, thanks @oleksii-tumanov) — `class Foo extends Bar<T>` / `implements List<T>` now emit the `inherits`/`implements` edge to the base type, with the type arguments as `generic_arg` references.
- Fix: the `claude-cli` backend no longer crashes with `UnicodeDecodeError` on Windows systems where `claude.cmd` emits GBK/cp936 bytes (#1505, thanks @nuthalapativarun) — both subprocess calls decode with `errors="replace"`.
- Fix: `graphify explain` and `graphify affected` now resolve a query given as a source-file path even when the graph has multiple nodes from that file (#1503, thanks @behavio1). A path like `app/api/route.ts` tokenized to terms that matched no node, so explain returned "No node matching"; source-file paths are now indexed and matched exactly, and when several nodes share the file the lookup prefers the file-level node (the `L1` node whose name matches the file). Trailing-separator handling is aligned between the two commands.
- Docs: clearer install/PATH guidance for `uv tool install graphifyy` on macOS (#1471, thanks @Patsch36). Two expected uv behaviors read as bugs: (1) after `uv tool install`, the `graphify` command lands in uv's tool bin dir (`~/.local/bin`), which a fresh macOS/zsh shell often doesn't have on `PATH` — the README now points to `uv tool update-shell` instead of implying uv always wires `PATH`; (2) `uvx graphify …` / `uv tool run graphify …` resolve the first word as a *package* and fail, because the package is `graphifyy` and `graphify` is only its console script — the docs now show `uvx --from graphifyy graphify install`. README install note + Troubleshooting only; no code change.
- Fix: imported type stubs with the same label no longer falsely merge across files when there is no project definition to rewire onto (#1462, thanks @jiangyq9). Two files that both `from pathlib import Path` and use `Path` as a type previously collapsed into one node; the referencing file is now kept as an internal disambiguator (`origin_file`) used only when splitting colliding ids, while `source_file` stays empty so a real project definition can still be rewired onto (the #1402 path is unaffected).
- Feat: resolve C# cross-file type references and extract `enum`/`struct`/`record` declarations (#1466, thanks @TheFedaikin). A new `_resolve_csharp_type_references` (the C# counterpart to the Java resolver) re-points dangling `inherits`/`implements`/`references` edges from no-source "shadow" stubs to their real definitions, disambiguating same-named types in different namespaces via the referencing file's `using` directives and enclosing namespace; ambiguous matches are refused rather than guessed. `enum`/`struct`/`record` types are now extracted as definitions so those references resolve too. Advances #1318 for C#.
- Fix: the Go AST extractor no longer creates phantom duplicate nodes for cross-file type references — the Go copy of `ensure_named_node` still used the older sourced-stub fallback; it now emits a sourceless stub like the other extractors, extending the #1402 fix to Go (#1500, thanks @TPAteeq).