* fix: graceful fallback when native addon is unavailable on unsupported platforms
On platforms without a pre-built native binary (e.g., win32-arm64),
the native loader threw at import time, crashing the entire application.
Now returns a Proxy object that:
- Allows the import to succeed (no startup crash)
- Throws per-function when a native function is actually called
- Individual consumers (GSD parser bridge, fuzzy find, autocomplete)
already wrap native calls in try/catch and fall back to JS
implementations
Also exports nativeAvailable boolean for consumers that want to check
upfront. Prints a one-line warning to stderr on startup.
GSD is now fully functional on unsupported platforms — just slower for
file parsing, grep, and fuzzy search.
Fixes#1223
* fix: remove __nativeUnavailable from exported type to fix TS2352 cast errors
The __nativeUnavailable boolean property on the native type caused
TS2352 errors in consumers that cast native as Record<string, Function>
(ast/index.ts, diff/index.ts, gsd-parser/index.ts).
Replaced with a module-level _loadedSuccessfully flag and exported
nativeAvailable boolean. The proxy no longer needs a sentinel property.
97d589c200