Feat/cs/digital touch render

[ReagentX]

• Fully implement Digital Touch Support #344
  • Investigation and reverse-engineering by @trymoose

[ReagentX]

Sample render:

[ReagentX]

Multicolor strokes with single points:

Multicolor taps:

[Copilot]

Pull request overview

This PR fully implements Digital Touch support (issue #344) by adding a complete Digital Touch parser/renderer to imessage-database and wiring it into both the TXT and HTML exporters, replacing the prior “debug dump” placeholder templates.

Changes:

• Introduces a structured DigitalTouchMessage API that parses Digital Touch protobuf payloads and renders either text summaries or static SVGs (including media messages with image/video handling).
• Updates TXT and HTML exporters to use DigitalTouchMessage rendering, adds/updates tests, and removes the old Digital Touch debug templates/view-models.
• Extends error plumbing to surface Digital Touch parsing errors with detail via PlistParseError.

Reviewed changes

Copilot reviewed 27 out of 32 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
README.md	Updates supported macOS build string/version reference.
imessage-exporter/src/exporters/txt/view_model.rs	Removes unused TXT Digital Touch template VM.
imessage-exporter/src/exporters/txt/templates/balloons/digital_touch.txt	Removes TXT Digital Touch debug template.
imessage-exporter/src/exporters/txt/mod.rs	Updates TXT tests to parse real Digital Touch payloads and assert rendered summaries.
imessage-exporter/src/exporters/txt/balloons.rs	Switches TXT rendering from debug template to DigitalTouchMessage::render_text().
imessage-exporter/src/exporters/shared/balloon.rs	Routes Digital Touch messages through DigitalTouchMessage::from_payload() and propagates detailed errors.
imessage-exporter/src/exporters/html/view_model.rs	Removes unused HTML Digital Touch template VM.
imessage-exporter/src/exporters/html/templates/balloons/digital_touch.html	Removes HTML Digital Touch debug template.
imessage-exporter/src/exporters/html/resources/style.css	Adds layout rules for Digital Touch SVG/video display.
imessage-exporter/src/exporters/html/mod.rs	Updates/adds HTML tests to validate SVG output for Digital Touch messages.
imessage-exporter/src/exporters/html/balloons.rs	Implements HTML Digital Touch rendering, including attachment-backed media handling and fallback behavior.
imessage-exporter/src/exporters/formatter.rs	Updates BalloonFormatter signature to accept DigitalTouchMessage.
imessage-database/src/message_types/text_effects/text_effect.rs	Adjusts module import path.
imessage-database/src/message_types/digital_touch/*.rs	Adds full Digital Touch parsing and SVG/text rendering implementation across effects (tap/sketch/kiss/heartbeat/fireball/media) plus shared SVG builder.
imessage-database/src/message_types/digital_touch/digital_touch.proto	Documents and extends Digital Touch protobuf schema (adds Media).
imessage-database/src/message_types/digital_touch/digital_touch_proto.rs	Regenerates protobuf bindings to include Media.
imessage-database/src/error/plist.rs	Extends PlistParseError to carry underlying DigitalTouchError.
imessage-database/src/error/mod.rs	Exposes new digital_touch error module.
imessage-database/src/error/digital_touch.rs	Adds DigitalTouchError for parse/archive/validation failures.

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[Copilot]

Pull request overview

Copilot reviewed 28 out of 33 changed files in this pull request and generated 3 comments.

[Copilot]

Pull request overview

Copilot reviewed 29 out of 34 changed files in this pull request and generated 2 comments.