Fix plain-text email formatting

[ivankuznetsov]

Summary

Plain-text messages sent through hey compose and hey reply currently appear as one collapsed paragraph in HEY, even when their input contains blank lines. This change converts ordinary text into escaped HEY-compatible HTML so paragraph and line-break formatting survives rendering, while --raw-html keeps an explicit path for callers that already provide Action Text markup.

The behavior was reproduced with a self-email in HEY’s mobile UI, then validated end to end with a patched binary: ordinary plain-text input rendered as separate paragraphs and preserved line breaks.

Validation

• make check
• Live self-email through the patched CLI
• Unit coverage for paragraphs, CRLF normalization, HTML escaping, raw HTML, and surrounding whitespace

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Summary by cubic

Fixes collapsed paragraphs in plain-text emails by converting input to HEY-compatible HTML so line breaks and blank lines render in hey compose and hey reply. Adds --raw-html for preformatted HTML and rejects empty or whitespace-only bodies.

• Bug Fixes

  • Convert plain text to escaped HTML with paragraph and line-break markup; normalize CRLF and trim.
  • Revalidate after formatting and reject empty/whitespace-only content, including with --raw-html.

• New Features

  • Add --raw-html to hey compose and hey reply to bypass formatting when sending HEY-compatible HTML.

^{Written for commit 59a1bfa. Summary will update on new commits.}

[Copilot]

Pull request overview

This PR fixes HEY’s collapsed formatting for plain-text bodies sent via hey compose and hey reply by converting plain text into escaped, HEY-compatible HTML (paragraphs + line breaks), while adding a --raw-html escape hatch for callers who already supply Action Text/HTML.

Changes:

• Add formatMessageContent helper to normalize newlines, trim, escape HTML, and wrap paragraphs/line breaks for HEY rendering.
• Wire formatting into both compose and reply, and add a --raw-html flag to bypass formatting.
• Add unit tests for the formatter and update the CLI surface snapshot to include the new flags.

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Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
internal/cmd/message_format.go	Introduces plain-text → HEY-compatible HTML formatting helper.
internal/cmd/message_format_test.go	Adds unit coverage for paragraph splitting, newline normalization, escaping, raw HTML passthrough, and trimming.
internal/cmd/compose.go	Adds --raw-html flag and applies message formatting before send.
internal/cmd/reply.go	Adds --raw-html flag and applies message formatting before sending replies.
.surface	Updates surface baseline to include the new flags.

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[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated no new comments.