Allow images to be pasted inline within the message text, not pinned to the top

Feature request: allow images to be pasted inline within the message text, not pinned to the top

Area: Claude Code - message composer / input area
Type: Enhancement (UX)

Problem

When I paste an image into a session, it is always attached at the top of the message, above all the text. When a single message contains several images that each relate to a different part of the text, there's no way to tell which image belongs to which paragraph. Both the reader and Claude have to guess the mapping between each image and the text it illustrates.

Current behavior

• Pasting an image always places its thumbnail at the top of the composer, regardless of where the text cursor is.
• All images for a message stack together at the top, decoupled from the specific sentences they refer to.

Expected / requested behavior

• Let me paste an image at the current cursor position, inline within the text, so the image sits directly next to the paragraph it relates to.
• A message with multiple images should preserve text → image → text → image ordering, so each image is visually anchored to its own explanatory text.

Example (see attached screenshot)

The attached screenshot is a real multi-image message. Two thumbnails are pinned at the top of the composer, and below them are four separate paragraphs that each refer to a different image:

• "variation should show up in the search results with the specific color image"
• "see circled area - we should increase the space size between variations"
• "the share button overrides the image area (see screenshot)"

Because both images are stacked at the top, there is no way to tell which thumbnail corresponds to which paragraph. If images could be pasted inline, each screenshot would sit right next to the sentence describing it.

Why it matters

• Removes ambiguity about which screenshot each instruction/observation refers to.
• Makes multi-image bug reports and change requests far easier to author and to read.
• Matches how people naturally write: describe something, then show it, then describe the next thing.

Suggested acceptance criteria

• Pasting/dropping an image inserts it at the caret, not the top.
• Message rendering preserves interleaved text and images in authored order.
• Existing top-attach behavior remains available (e.g., for images that apply to the whole message).