remove OIDC/Postgres, replace ApiError w/ AppError, move params to api-types

crates/mcp/Cargo.toml

@@ -10,7 +10,6 @@ path = "src/main.rs"
 [features]
 default = ["sqlite", "jellyfin"]
 sqlite = ["dep:adapter-sqlite", "infra-wiring/sqlite"]
-postgres = ["dep:adapter-postgres", "infra-wiring/postgres"]
 jellyfin = ["dep:adapter-jellyfin"]
 
 [dependencies]
@@ -21,7 +20,6 @@ adapter-auth = { workspace = true }
 adapter-event-publisher = { workspace = true }
 
 adapter-sqlite = { workspace = true, optional = true }
-adapter-postgres = { workspace = true, optional = true }
 adapter-jellyfin = { workspace = true, optional = true }
 
 rmcp = { version = "0.1", features = ["server", "transport-io"] }

crates/mcp/src/main.rs

@@ -118,18 +118,6 @@ fn wire_repositories(pool: &DbPool) -> anyhow::Result<WireOutput> {
                 library_query: w.library_query,
             })
         }
-        #[cfg(feature = "postgres")]
-        DbPool::Postgres(pg_pool) => {
-            let w = adapter_postgres::wire(pg_pool.clone());
-            Ok(WireOutput {
-                channel_command: w.channel_command,
-                channel_query: w.channel_query,
-                schedule_command: w.schedule_command,
-                schedule_query: w.schedule_query,
-                library_query: w.library_query,
-            })
-        }
-        _ => anyhow::bail!("database backend not compiled into this binary"),
     }
 }