Add changeset

Author: bobsingor

.changeset/models-locked-contents-flag.md

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+'@embedpdf/models': patch
+---
+
+Add `PdfAnnotationFlags.LOCKED_CONTENTS` (`1 << 9`) and map it to the `'lockedContents'` `PdfAnnotationFlagName`, extending flag parsing helpers (`flagsToNames`, `namesToFlags`) accordingly.

.changeset/plugin-annotation-lock-flags-svelte-vue.md

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+'@embedpdf/plugin-annotation': patch
+---
+
+Add PDF `LOCKED_CONTENTS` flag handling and granular lock helpers (`hasNoViewFlag`, `hasHiddenFlag`, `hasReadOnlyFlag`, `hasLockedContentsFlag`). Expose `isAnnotationInteractive`, `isAnnotationStructurallyLocked`, `isAnnotationContentLocked`, and `isAnnotationSelectable` on the plugin API. Update annotation rendering across React/Preact, Svelte, and Vue to skip `noView`/`hidden` annotations and gate interactions using the new predicates. Thread `structurallyLocked` and `contentLocked` through the selection menu context on all three stacks so custom menus can disable structural or content edits without re-reading flag arrays.

.changeset/snippet-annotation-lock-commands.md

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+'@embedpdf/snippet': patch
+---
+
+Align annotation fill-mode toolbar commands with plugin-configured default lock state via `getDefaultAnnotationLock`, and swap unlock vs form-only lock behavior so defaults match the intended modes. Re-export `LockModeType` from the snippet’s public `embedpdf` entry for consumers.