diff --git a/GEMINI.md b/GEMINI.md
index e424678f..15d83886 100644
--- a/GEMINI.md
+++ b/GEMINI.md
@@ -33,6 +33,8 @@ You must follow the safety, testing, and coordination standards defined in:
 - **Bootstrap Paradox:** Use unauthenticated bypass (`x-no-account-id: "Nothing to See Here"`) for initial site/domain lookups.
 - **Sev-1 Incident Recovery (2026-02-13):** Purged redundant/misplaced headers (`x-aether-api-token`, `Access-Control-Allow-Origin`). Unified all CRUD helpers to standard `/v3/crud/...` paths.
 - **Account ID Scavenging:** Core fetch helpers now proactively read `account_id` from `localStorage` (`ae_loc`) if missing from config. This is the mandatory fix for Svelte 5 hydration race conditions where `onMount` triggers API calls before global stores are synced.
+- **V3 Event File Mapping (2026-02-19):** Mapped prefixed backend fields (`hosted_file_hash_sha256`, `hosted_file_size`) to flat properties (`hash_sha256`, `file_size`) in the data layer. Required `inc_hosted_file=true` query param for full metadata retrieval.
+- **Launcher Location Discovery:** Resolved missing locations in room select by ensuring `load_ae_obj_li__event_location` requests `hidden: 'all'` during background sync and initial load.
 
 ## 🤝 Coordination & Continuity
 - **Handshake:** Use the `message` tool to notify the Backend Agent of UI/Data requirements.