rename rss crate to rss-adapter (chef fingerprint clash); drop thin lto; CONTRIBUTING guards

Cargo.toml

@@ -5,7 +5,7 @@ default-members = [
     "crates/adapters/metadata",
     "crates/adapters/poster-fetcher",
     "crates/adapters/object-storage",
-    "crates/adapters/rss",
+    "crates/adapters/rss-adapter",
     "crates/adapters/sqlite",
     "crates/adapters/sqlite-federation",
     "crates/adapters/activitypub",
@@ -31,7 +31,7 @@ members = [
     "crates/adapters/metadata",
     "crates/adapters/poster-fetcher",
     "crates/adapters/object-storage",
-    "crates/adapters/rss",
+    "crates/adapters/rss-adapter",
     "crates/adapters/sqlite",
     "crates/adapters/sqlite-federation",
     "crates/adapters/activitypub",
@@ -110,7 +110,7 @@ calamine = "0.35"
 image = { version = "0.25", default-features = false }
 ravif = { version = "0.11", default-features = false }
 webp = "0.3"
-rss-feed = { package = "rss", version = "2" }
+rss = { version = "2" }
 ratatui = "0.30.0"
 keyring-core = "1.0.0"
 directories = "6"
@@ -126,7 +126,7 @@ metadata = { path = "crates/adapters/metadata" }
 poster-fetcher = { path = "crates/adapters/poster-fetcher" }
 object-storage = { path = "crates/adapters/object-storage" }
 event-publisher = { path = "crates/adapters/event-publisher" }
-rss = { path = "crates/adapters/rss" }
+rss-adapter = { path = "crates/adapters/rss-adapter" }
 export = { path = "crates/adapters/export" }
 sqlite = { path = "crates/adapters/sqlite" }
 sqlite-federation = { path = "crates/adapters/sqlite-federation" }
@@ -146,5 +146,4 @@ opt-level = 2                # compile deps faster at runtime; paid once, cached
 
 [profile.release]
 codegen-units = 1
-lto = "thin"
 strip = true