`restoreQueuedMessagesToEditor` prepended queued text but appended queued
images to `pendingImages`. Positional `[Image #N]` lookup at submit time
therefore broke whenever the editor draft already held pending image(s):
queued markers (numbered 1..K against their own image list) collided with
draft markers (1..M) and resolved to the wrong images; queued images
landing past slot M were orphaned.
Add `shiftImageMarkers(text, offset)` to `image-references.ts` and have
`restoreQueuedMessagesToEditor` walk each queued message in order,
shifting its markers by the running pending-image count (existing draft
images plus images already pulled in from earlier queued messages). Draft
markers stay untouched because draft images keep their original slots.
Paste markers are left alone — those are owned by the editor's paste store,
not the pending-image buffer, and queued message text never carries
unmaterialized `[Paste #N]` because the editor expands paste markers in
`getExpandedText()` before `onSubmit` fires.
Regression test seeds a draft image + a queued image-message in
`input-controller-compaction-image.test.ts` (per acceptance) and locks the
marker -> image mapping after restore. Unit tests for
`shiftImageMarkers` cover the WxH tail, Paste-marker passthrough, and
the zero-offset no-op.
Fixes#2531
- Added atomicTokenPattern support to treat image and paste markers as indivisible tokens, enabling atomic deletion on backspace and forward-delete instead of character-by-character removal.
- Extended image marker format to include pixel dimensions [Image #N, WxH] and updated paste marker format to [Paste #N, +X lines] or [Paste #N, Y chars] with consistent comma-separated metadata.
- Implemented accent styling for paste markers in editor rendering while preserving hyperlinks for image markers, improving visual distinction between marker types.
- Refactored image reference handling to unified placeholder system supporting both image and paste markers with kind-aware rendering callbacks and regex patterns.
roboomp