Show cache status in the TUI

tools/content/tui/cache_indicator.py

@@ -0,0 +1,16 @@
+from rich.text import Text
+
+CACHED = "cached"
+PARTIAL = "partial"
+MISSING = "missing"
+STATE_STYLES = {CACHED: "green", PARTIAL: "yellow", MISSING: "red"}
+
+
+def cache_state(has_details: bool, has_local_image: bool) -> str:
+    if not has_details:
+        return MISSING
+    return CACHED if has_local_image else PARTIAL
+
+
+def cache_text(state: str) -> Text:
+    return Text(state, style=STATE_STYLES[state])