Archive meeting workflow and screenshot changes

openspec/specs/meeting-transcription/spec.md

@@ -283,6 +283,8 @@ When a match is confirmed and the identity has a canonical name, Meeting Assista
 
 When a match is confirmed and the matched speaker is not already listed in meeting note attendees by display name or alias, Meeting Assistant SHALL add the speaker display name to the attendee list.
 
+When a match is confirmed and the meeting note attendees contain both the speaker display name and one or more accepted aliases for that same speaker, Meeting Assistant SHALL remove the alias attendee entries and keep the display name entry.
+
 When Meeting Assistant writes attendees from calendar metadata, it SHALL match attendee display names exactly against known identity canonical names and aliases, replace matches with the identity display name, and deduplicate attendees that map to the same identity.
 
 #### Scenario: Finished transcript is relabeled after a confirmed match
@@ -295,6 +297,13 @@ When Meeting Assistant writes attendees from calendar metadata, it SHALL match a
 - **WHEN** a finished transcript has diarized speaker `Guest03` and the matching backend confirms it is `Chris`
 - **THEN** Meeting Assistant stores the meeting note and transcript file addresses as a reference for `Chris`
 
+#### Scenario: Confirmed match removes duplicate aliases
+- **GIVEN** the speaker identity database contains canonical speaker `Christopher` with alias `Chris`
+- **AND** the meeting note attendees contain both `Christopher` and `Chris <chris@example.com>`
+- **WHEN** live or final speaker matching confirms a diarized speaker is `Christopher`
+- **THEN** Meeting Assistant keeps `Christopher` in the meeting note attendees
+- **AND** removes `Chris <chris@example.com>` from the meeting note attendees
+
 ### Requirement: Speaker matching runs during active transcription
 Meeting Assistant SHALL start speaker identity matching only after the configured initial transcription duration has elapsed.