Summary

Expand path_open so it honors Preview1 path resolution flags, open flags, descriptor flags, and requested rights instead of only resolving virtual paths.

Parent tracking issue: #15
Suggested implementation order: 19 / 39

Suggested dependencies

• Support writable virtual files and non-stdio fd_write in WASI Preview1 #21 Support writable virtual files and non-stdio fd_write in WASI Preview1
• Expand fd_fdstat_get and fd_filestat_get metadata to better match WASI Preview1 #22 Expand fd_fdstat_get and fd_filestat_get metadata to better match WASI Preview1
• Implement fd_fdstat_set_rights for WASI Preview1 on native and web backends #24 Implement fd_fdstat_set_rights for WASI Preview1 on native and web backends

References

• https://github.com/WebAssembly/WASI/blob/wasi-0.1/preview1/docs.md#L2141

Acceptance criteria

• path_open honors the relevant Preview1 flags and rights for supported native/web file models.
• Tests cover file opens, directory opens, rights narrowing, and invalid flag combinations.