Preserve recovery transcripts and add user-approved agent requests

Append successful offline recovery with a duplicate-warning marker and retain failed replay sources. Offer newly available microphones through confirmation notifications.

Add project discovery metadata and blocking association approval, plus nonblocking workflow requests that start a separate settings-agent conversation. Include regression tests, OpenSpec changes, and verified local Release startup.

MeetingAssistant/Summary/BoundMeetingProjectResolver.cs

@@ -18,6 +18,12 @@ public sealed class BoundMeetingProjectResolver
 
     public string ProjectsRoot => VaultPath.Resolve(options.Vault, options.Vault.ProjectsFolder);
 
+    public List<BoundMeetingProject> GetAllProjects() => !Directory.Exists(ProjectsRoot) ? [] :
+        Directory.EnumerateDirectories(ProjectsRoot)
+            .Select(path => new BoundMeetingProject(Path.GetFileName(path), path))
+            .OrderBy(project => project.Name, StringComparer.OrdinalIgnoreCase)
+            .ToList();
+
     public async Task<List<BoundMeetingProject>> GetBoundProjectsAsync(
         MeetingSessionArtifacts artifacts,
         CancellationToken cancellationToken = default)
@@ -33,10 +39,8 @@ public sealed class BoundMeetingProjectResolver
             return [];
         }
 
-        return Directory.EnumerateDirectories(ProjectsRoot)
-            .Select(path => new BoundMeetingProject(Path.GetFileName(path), path))
+        return GetAllProjects()
             .Where(project => projectNames.Contains(project.Name))
-            .OrderBy(project => project.Name, StringComparer.OrdinalIgnoreCase)
             .ToList();
     }