R1 cleanup: collAnon and dead code gone, docs current, every peer's scenario in one sweep

Starts the completion program (docs/ROADMAP.md, "Owner decisions on finishing everything", 2026-10-17).

- Dead code: the commented-out collAnon blocks (discussions, seeding, admin user lists, HTTP/3, the old signature
  middleware), the empty PrivaPubWorkersConfiguration, PublicAvatarUsersService and UserPolicyType, unused helpers,
  the second IPasswordHasher registration, the PasswordGenerator package, SignUpAsync/LoginAsync's unused invitation
  parameters. "Starting PrivaPub"; a signed-in login is sent to "/", not to "/discussions".
- Stored fields nothing read: RootUser.Contacts and ResetPasswordToken*, the local Avatar.AvatarServer,
  EmailRecovery.RecoveryCode/RequestIP/CreationDate, MongoSettings.LogsDatabase, and AppConfiguration's
  upload/discussion keys, RequiresFirstTimeSetup and Version (old documents still load: MongoDB.Entities ignores extra
  elements). DmPost's indexes are no longer made. 49 collAnon keys leave FieldsNameResource in every language.
- /clientapi/data/current-version answers the build's ref. UsersIds is a list that can't throw, and the admin routes
  leave the administrator out without mutating the request.
- deploy.yml checks SecureMode on a name no persona can have, and the browser redirect on the directory's first local
  persona: @thepra is the administrator's own now.
- Town: decePub's e2e remnants (expect, client.jsonl, the decePub column) and town/tests go; the dead gaps/load
  commands too. Mobilizon no longer keeps an event for a deleted test.
- tools/pasture/sweep.sh runs every peer's scenario, batch by batch, as CLAUDE.md asks before a change to what
  PrivaPub sends.
- Docs: CLAUDE.md's repo map, route table (every frozen route) and stale lines; ROADMAP's status (setup, v1.25.0,
  v1.26.0, the program C), the 2026-10-17 decisions, and dated notes where earlier text no longer holds; FEDERATION.md's
  FEP list (7888, f228, 7628, ae0c and 8967 supported) and the deploy's persona.

Verified: dotnet build PrivaPub.sln -c Release (0 errors, no new warnings); bash -n on the touched scripts; py_compile
on the town; the pasture's gts, mastodon and lemmy scenarios on this build.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WpVCoDeM1qUTRp4fXQdfof

tools/pasture/scenarios/mobilizon.sh

@@ -1,8 +1,8 @@
 # Mobilizon 5.2.4: a group and its events. alice_mobilizon follows the group, which announces the events its members
 # organise; an event arrives as an Event with its dates and place; she joins it and leaves; comments both ways; an edit
-# and comments closed; deletes; a group post; an event kept for decePubClient's e2e; the unfollow. An event made through its API without options has its comments closed
-# (`commentsEnabled: false`), which PrivaPub honours, so this one opens them. Mobilizon's API is GraphQL (/api), signed in by its login mutation; what it holds is read from
-# its PostGIS (database mobilizon).
+# and comments closed; deletes; a group post; the unfollow. An event made through its API without options has its
+# comments closed (`commentsEnabled: false`), which PrivaPub honours, so this one opens them. Mobilizon's API is GraphQL
+# (/api), signed in by its login mutation; what it holds is read from its PostGIS (database mobilizon).
 MZ=https://mobilizon.test:6443
 mz_sql() { podman exec pasture-postgis psql -U pasture -d mobilizon -tAc "$1" 2>/dev/null; }
 # mz <query> [variables as JSON]: a GraphQL request as mzuser, its JSON answer
@@ -91,16 +91,6 @@ mz 'mutation($g:ID!,$t:String!){createPost(attributedToId:$g,title:$t,body:"<p>t
 	"{\"g\":\"$group\",\"t\":\"$post_title\"}" >/dev/null
 until_true 60 '[ -n "$(p_home_has "$post_title")" ]' && ok "the group's post reaches alice_mobilizon's home, with its title" || ko "the group's post never arrived"
 
-echo "  an event kept for decePub's tests"
-# decePubClient's e2e joins it from its card (tests/e2e/Actions/EventTests.cs); the one a run before this one kept goes
-kept="$here/.state/mobilizon-kept-event.json"
-[ -s "$kept" ] && mz 'mutation($e:ID!){deleteEvent(eventId:$e){id}}' "{\"e\":\"$(j "print(d['id'])" < "$kept")\"}" >/dev/null
-kept_title="A concert kept for decePub $(date +%s)"
-kept_begins=$(date -u -d '+10 days' +%Y-%m-%dT19:00:00Z); kept_ends=$(date -u -d '+10 days' +%Y-%m-%dT22:00:00Z)
-mz 'mutation($t:String!,$b:DateTime!,$e:DateTime!,$o:ID!,$g:ID){createEvent(title:$t,description:"<p>come and listen</p>",beginsOn:$b,endsOn:$e,organizerActorId:$o,attributedToId:$g,visibility:PUBLIC,joinOptions:FREE,options:{commentModeration:ALLOW_ALL},physicalAddress:{description:"Piazza del Popolo",locality:"Roma",country:"Italia",geom:"12.4763;41.9109"}){id url}}' \
-	"{\"t\":\"$kept_title\",\"b\":\"$kept_begins\",\"e\":\"$kept_ends\",\"o\":\"$me\",\"g\":\"$group\"}" | j "print(json.dumps(d['data']['createEvent']))" > "$kept"
-until_true 60 '[ -n "$(p_home_has "$kept_title")" ]' && ok "an event kept for decePub's tests reaches PrivaPub" || ko "the kept event never arrived"
-
 echo "  unfollow"
 curl -s -o /dev/null -X POST -H "$PH" "$P/api/v1/accounts/$group_on_p/unfollow"
 until_true 45 '[ "$(mz_sql "select count(*) from followers f join actors a on a.id = f.actor_id where a.url like '"'%alice_mobilizon%'"'")" = "0" ]' \