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b0a45809ff
Prepend a leading slash and reject `..` segments so scoped OneDrive delta queries use `root:/path:/delta` instead of `root:path:/delta`. Fixes #15500 ### What problem does this PR solve? The OneDrive connector builds Microsoft Graph delta URLs from optional `config.folder_path`. When users enter a path without a leading slash (e.g. `Documents/Reports` instead of `/Documents/Reports`), the connector produces a malformed URL such as `root:Documents/Reports:/delta`. Per [Microsoft Graph path-based addressing](https://learn.microsoft.com/en-us/graph/onedrive-addressing-driveitems), the segment after `root:` must start with `/` (e.g. `root:/Documents/Reports:/delta`). Sync and validation then fail or return no documents, which is hard to diagnose from the UI because the optional folder field does not enforce the format. This PR normalizes `folder_path` at connector construction time (prepend `/`, trim whitespace and trailing slashes) and rejects `..` segments before any Graph request is made. ### Type of change - [x] Bug Fix (non-breaking change which fixes an issue)