Link share authenticated users could call ReadAll on link shares,
which leaked hash credentials for other shares on the same project.
This allowed permission escalation from read-only to write/admin.
Add a check at the top of ReadAll() that rejects link-share-authenticated
callers, mirroring the pattern in CanRead() and canDoLinkShare().
Update tests to expect 403 Forbidden for all link share permission levels.
Fixes GHSA-8hp8-9fhr-pfm9
This changes the error handling to a centralized HTTP error handler in `pkg/routes/error_handler.go` that converts all error types to proper HTTP responses. This simplifies the overall error handling because http handler now only need to return the error instead of calling HandleHTTPError as previously.
It also removes the duplication between handling errors with and without Sentry.
🐰 Hop along, dear errors, no more wrapping today!
We've centralized handlers in a shiny new way,
From scattered to unified, the code flows so clean,
ValidationHTTPError marshals JSON supreme!
Direct propagation hops forward with glee,
A refactor so grand—what a sight to see! 🎉
