Write the brand in lowercase where people see it

The name is inbuxa, lowercase, like the wordmark; INBUXA reads as an
acronym. The admin and webmail already changed. Here that's everything
the server shows people: the brand macro behind the protocol greetings,
the HTTP and SCIM realms, the startup banner and the calendar and contact
PRODID; the first-party OAuth client descriptions; the legacy-protocol
refusals; the default calendar and address book names and the SMTP
greeting default, in the code and the schema served to the admin
(checksum regenerated); startup and shutdown events; the User-Agent;
the sign-in and RSVP pages; the service units; the OpenAPI realm; the
crate descriptions and the README, where it's set in bold.

Identifiers that are uppercase for their own reasons stay: INBUXA_*
settings, SUBSPACE_INBUXA. So do code comments and the AGPL 5(a) notice
lines.

Tests follow: the IMAP ID name, the default collection names, the PRODID
in the iTIP fixtures and the CalDAV free-busy expectations, and the e2e
legacy-protocol refusals. The webdav, imap and jmap suites pass, so do
the unit tests of every crate touched, and 73 of 75 SMTP tests; of the
other two, antispam fails on main too, and queue_retry is a timing flake
that passes on its own.

tests/src/imap/basic.rs

@@ -47,7 +47,7 @@ pub async fn test(imap: &mut ImapConnection, _imap_check: &mut ImapConnection) {
     imap.send("ID").await;
     imap.assert_read(Type::Tagged, ResponseType::Ok)
         .await
-        .assert_contains("* ID (\"name\" \"INBUXA\" \"version\" ");
+        .assert_contains("* ID (\"name\" \"inbuxa\" \"version\" ");
 
     // Login should be disabled
     imap.send("LOGIN [email protected] secret").await;

tests/src/jmap/calendar/calendars.rs

@@ -45,7 +45,7 @@ pub async fn test(test: &TestServer) {
         list[0],
         json!({
             "id": default_calendar_id,
-            "name": "INBUXA Calendar ([email protected])",
+            "name": "inbuxa Calendar ([email protected])",
             "description": null,
             "sortOrder": 0,
             "isSubscribed": true,
@@ -310,7 +310,7 @@ pub async fn test(test: &TestServer) {
     }));
     response.list()[1].assert_is_equal(json!({
         "id": default_calendar_id,
-        "name": "INBUXA Calendar ([email protected])",
+        "name": "inbuxa Calendar ([email protected])",
         "description": (),
         "sortOrder": 0,
         "isSubscribed": true,

tests/src/jmap/contacts/addressbook.rs

@@ -38,7 +38,7 @@ pub async fn test(test: &TestServer) {
     assert_eq!(
         list[0],
         json!({
-            "name": "INBUXA Address Book ([email protected])",
+            "name": "inbuxa Address Book ([email protected])",
             "description": (),
             "sortOrder": 0,
             "isSubscribed": true,
@@ -148,7 +148,7 @@ pub async fn test(test: &TestServer) {
                 "id": addressbook_id,
             }),
             json!({
-                "name": "INBUXA Address Book ([email protected])",
+                "name": "inbuxa Address Book ([email protected])",
                 "description": (),
                 "sortOrder": 0,
                 "isSubscribed": true,

tests/src/scim/acceptance.rs

@@ -106,7 +106,7 @@ async fn discovery(scim: &ScimTest) {
     );
     assert!(
         !config.body.contains("stalw"),
-        "SCIM-4: documentation is INBUXA's own"
+        "SCIM-4: documentation is inbuxa's own"
     );
 
     let types = anonymous.get("/ResourceTypes").await;

tests/src/system/branding.rs

@@ -503,7 +503,7 @@ pub async fn branding_compat() {
     let admin = std::env::var("INBUXA_COMPAT_ADMIN").expect("INBUXA_COMPAT_ADMIN");
     assert!(
         std::env::var("NO_INSERT").is_ok(),
-        "NO_INSERT must be set, or the copy of INBUXA's data is wiped"
+        "NO_INSERT must be set, or the copy of inbuxa's data is wiped"
     );
     let test = TestServerBuilder::new("branding_compat")
         .await

tests/src/system/masked_email.rs

@@ -431,7 +431,7 @@ pub async fn masked_email_compat() {
     .expect("masks JSON");
     assert!(
         std::env::var("NO_INSERT").is_ok(),
-        "NO_INSERT must be set, or the copy of INBUXA's data is wiped"
+        "NO_INSERT must be set, or the copy of inbuxa's data is wiped"
     );
 
     let test = TestServerBuilder::new("masked_email_compat")

tests/src/system/tenant.rs

@@ -908,7 +908,7 @@ pub async fn tenant_compat() {
     .expect("expected JSON");
     assert!(
         std::env::var("NO_INSERT").is_ok(),
-        "NO_INSERT must be set, or the copy of INBUXA's data is wiped"
+        "NO_INSERT must be set, or the copy of inbuxa's data is wiped"
     );
 
     let test = TestServerBuilder::new("tenant_compat")

tests/src/system/undelete.rs

@@ -618,7 +618,7 @@ pub async fn undelete_compat() {
     .expect("archived items JSON");
     assert!(
         std::env::var("NO_INSERT").is_ok(),
-        "NO_INSERT must be set, or the copy of INBUXA's data is wiped"
+        "NO_INSERT must be set, or the copy of inbuxa's data is wiped"
     );
 
     let test = TestServerBuilder::new("undelete_compat")

tests/src/webdav/cal_query.rs

@@ -907,7 +907,7 @@ const REPORT_10: &str = r#"<?xml version="1.0" encoding="utf-8" ?>
 
 const REPORT_10_RESPONSE: &str = r#"BEGIN:VCALENDAR
 VERSION:2.0
-PRODID:-//INBUXA//INBUXA Server//EN
+PRODID:-//inbuxa//inbuxa Server//EN
 BEGIN:VFREEBUSY
 DTSTART:20060104T140000Z
 DTEND:20060105T220000Z
@@ -928,7 +928,7 @@ const REPORT_11: &str = r#"<?xml version="1.0" encoding="utf-8" ?>
 
 const REPORT_11_RESPONSE: &str = r#"BEGIN:VCALENDAR
 VERSION:2.0
-PRODID:-//INBUXA//INBUXA Server//EN
+PRODID:-//inbuxa//inbuxa Server//EN
 BEGIN:VFREEBUSY
 DTSTART:20060101T000000Z
 DTEND:20060104T140000Z