Filters: words and posts a persona would rather not see

Mastodon's v2 filters replace the empty stubs: a filter's title, contexts,
action (warn, hide, blur) and expiry, its keywords (whole words or not,
taken as JSON objects, listed or numbered form fields, with id and _destroy
on update) and its statuses, each with their own endpoints; the v1 API is
the same filters seen keyword by keyword. Every status a persona reads
carries the filters it matches in `filtered` (a boost as what it boosts),
matched as Mastodon matches: warning, title, text, poll options and media
descriptions. Clients apply context and action. Filters never federate, and
go with a deleted persona.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

PrivaPub/Api/Mastodon/Entities/Entities.cs

@@ -178,6 +178,48 @@
 		public string CurrentUser { get; set; } = "denied";
 	}
 
+	public class FilterEntity
+	{
+		public string Id { get; set; }
+		public string Title { get; set; }
+		public List<string> Context { get; set; } = new();
+		public string ExpiresAt { get; set; }
+		public string FilterAction { get; set; }
+		public List<FilterKeywordEntity> Keywords { get; set; } = new();
+		public List<FilterStatusEntity> Statuses { get; set; } = new();
+	}
+
+	public class FilterKeywordEntity
+	{
+		public string Id { get; set; }
+		public string Keyword { get; set; }
+		public bool WholeWord { get; set; }
+	}
+
+	public class FilterStatusEntity
+	{
+		public string Id { get; set; }
+		public string StatusId { get; set; }
+	}
+
+	public class FilterResultEntity
+	{
+		public FilterEntity Filter { get; set; }
+		public List<string> KeywordMatches { get; set; }
+		public List<string> StatusMatches { get; set; }
+	}
+
+	// the v1 filter, which is one keyword of a v2 filter
+	public class FilterV1Entity
+	{
+		public string Id { get; set; }
+		public string Phrase { get; set; }
+		public List<string> Context { get; set; } = new();
+		public bool WholeWord { get; set; }
+		public string ExpiresAt { get; set; }
+		public bool Irreversible { get; set; }
+	}
+
 	public class EmojiReactionEntity
 	{
 		public string Name { get; set; }
@@ -266,7 +308,7 @@
 		public Application Application { get; set; }
 		public string Language { get; set; }
 		public string Text { get; set; }
-		public List<object> Filtered { get; set; } = new();
+		public List<FilterResultEntity> Filtered { get; set; } = new();
 		public PrivaPubStatus Privapub { get; set; }
 		public List<EmojiReactionEntity> EmojiReactions { get; set; } = new();
 		public PleromaStatus Pleroma { get; set; }