fix(#2369): skip statically-configured accounts in matrix token discovery to silence spurious sidecar warning

hive-matrix-mcp/src/accounts.rs

@@ -100,14 +100,13 @@ pub fn configured() -> anyhow::Result<Vec<AccountCfg>> {
     // its `matrix-account-<name>.json` homeserver sidecar) that aren't
     // already declared in config, so an account logged in via the dashboard
     // form works without a `matrixAccounts` edit + rebuild. Explicit config
-    // wins on name collision.
+    // wins on name collision — pass the configured set so discovery skips
+    // those names silently (a statically-configured account keeps its token
+    // on disk but is brought up from config, not discovery, so it must not
+    // log a spurious "no homeserver sidecar" warning).
     let configured: std::collections::HashSet<String> =
         accounts.iter().map(|a| a.name.clone()).collect();
-    for disc in discover_token_accounts() {
-        if !configured.contains(&disc.name) {
-            accounts.push(disc);
-        }
-    }
+    accounts.extend(discover_token_accounts(&configured));
     Ok(accounts)
 }
 
@@ -120,11 +119,25 @@ pub fn configured() -> anyhow::Result<Vec<AccountCfg>> {
 /// Best-effort: an unreadable dir or malformed sidecar yields fewer
 /// accounts, never an error — explicit `HIVE_MATRIX_ACCOUNTS` config stays
 /// authoritative.
-fn discover_token_accounts() -> Vec<AccountCfg> {
+///
+/// `configured` is the set of names already declared in
+/// `HIVE_MATRIX_ACCOUNTS`; those are brought up from config regardless of
+/// their on-disk sidecar, so discovery skips them silently rather than
+/// warning about a missing sidecar for an account that isn't actually down.
+fn discover_token_accounts(configured: &std::collections::HashSet<String>) -> Vec<AccountCfg> {
     let token_path = paths::token_file();
     let Some(state_dir) = token_path.parent() else {
         return Vec::new();
     };
+    discover_token_accounts_in(state_dir, configured)
+}
+
+/// Body of [`discover_token_accounts`] with the state dir injected, so the
+/// scan (and the configured-name skip) is unit-testable against a tempdir.
+fn discover_token_accounts_in(
+    state_dir: &Path,
+    configured: &std::collections::HashSet<String>,
+) -> Vec<AccountCfg> {
     let Ok(rd) = std::fs::read_dir(state_dir) else {
         return Vec::new();
     };
@@ -142,6 +155,13 @@ fn discover_token_accounts() -> Vec<AccountCfg> {
         if name.is_empty() {
             continue;
         }
+        // Already declared in config: it's brought up from `HIVE_MATRIX_ACCOUNTS`,
+        // not discovery, and its on-disk token needs no sidecar. Skip silently so
+        // a statically-configured account doesn't log a spurious missing-sidecar
+        // warning.
+        if configured.contains(name) {
+            continue;
+        }
         let sidecar = state_dir.join(format!("matrix-account-{name}.json"));
         let Some(homeserver) = read_account_homeserver(&sidecar) else {
             tracing::warn!(
@@ -392,7 +412,54 @@ fn write_accounts_snapshot_inner(
 
 #[cfg(test)]
 mod tests {
-    use super::{AccountStatus, heartbeat_accounts_snapshot, pick_name, write_accounts_snapshot};
+    use std::collections::HashSet;
+
+    use super::{
+        AccountStatus, discover_token_accounts_in, heartbeat_accounts_snapshot, pick_name,
+        write_accounts_snapshot,
+    };
+
+    #[test]
+    fn discovery_skips_configured_names_and_orphan_tokens() {
+        let dir = std::env::temp_dir().join(format!(
+            "hh-acct-disc-{}-{}",
+            std::process::id(),
+            std::time::SystemTime::now()
+                .duration_since(std::time::UNIX_EPOCH)
+                .unwrap()
+                .as_nanos()
+        ));
+        std::fs::create_dir_all(&dir).unwrap();
+
+        // A statically-configured account: token on disk, NO sidecar.
+        std::fs::write(dir.join("matrix-token-catgirl"), "tok").unwrap();
+        // An orphan dashboard token: no sidecar, not configured.
+        std::fs::write(dir.join("matrix-token-orphan"), "tok").unwrap();
+        // A fully dashboard-provisioned account: token + sidecar.
+        std::fs::write(dir.join("matrix-token-good"), "tok").unwrap();
+        std::fs::write(
+            dir.join("matrix-account-good.json"),
+            r#"{"homeserver":"https://good.example"}"#,
+        )
+        .unwrap();
+        // The hive account's own token must never be treated as an extra.
+        std::fs::write(dir.join("matrix-token"), "tok").unwrap();
+
+        let configured: HashSet<String> = ["main", "catgirl"]
+            .iter()
+            .map(|s| (*s).to_owned())
+            .collect();
+        let mut found: Vec<String> = discover_token_accounts_in(&dir, &configured)
+            .into_iter()
+            .map(|a| a.name)
+            .collect();
+        found.sort();
+
+        // catgirl (configured) + orphan (no sidecar) skipped; only `good` discovered.
+        assert_eq!(found, vec!["good".to_owned()]);
+
+        std::fs::remove_dir_all(&dir).ok();
+    }
 
     #[test]
     fn pick_name_single_account_defaults_to_primary() {