Saving updated notes.

GEMINI.md

@@ -22,19 +22,22 @@ I am the **primary orchestrator and main helper** for the development of the **U
 -   **ID Vision Mapping Stability**: Resolved a critical conflict in `app/lib_sql_search.py` where backend-injected integer filters (e.g., `account_id`) were being incorrectly mapped to `_random` string columns. Mapping now only occurs for non-integer values.
 -   **API Error Transparency**: Modified `sql_select` to return `False` on hard database errors (instead of empty results). Updated the V3 search endpoint to return a `500 Internal Server Error` in these cases, preventing "silent failures" where frontend developers would see `200 OK` with zero results during system errors.
 -   **NULL Logic in Filters**: Confirmed that explicit frontend filters like `hide: false` will FAIL to match `NULL` database values in standard SQL equality. It is more robust to rely on the API's built-in `hidden=not_hidden` URL parameter, which handles `(hide = false OR hide IS NULL)` automatically.
+-   **V3 Action Router Paradigm**: Established a new pattern for specialized binary operations (Upload/Download) under `/v3/action/`, keeping the standard `/v3/crud/` routes clean for JSON metadata.
+-   **Vision ID safety Net**: Enhanced `lookup_id_random_pop` to resolve random string IDs found in any `*_id` field, ensuring "Vision" style payloads (where IDs are strings) are correctly converted to integers before database insertion even if the `*_id_random` field is missing.
 
-## Session Summary & Progress (Jan 21, 2026)
+## Session Summary & Progress (Jan 22, 2026)
 
-This session focused on stabilizing the V3 search engine and enhancing the "ID Vision" developer experience.
+This session focused on migrating and stabilizing the Hosted File management system into the V3 architecture.
 
-*   **V3 Search Engine Enhancements:**
-    *   **Comprehensive ID Vision:** Expanded `vision_fields` mapping to include almost all major Aether objects (Event, Journal, Order, Product, etc.), allowing clean names in frontend filters.
-    *   **Error Handling Refactor:** Standardized SQL error bubbling to return `500` status codes with DB details instead of misleading `200` successes.
-    *   **Status Filter Consistency:** Added `not_enabled` alias for the `enabled` status parameter to align with `not_hidden`.
-*   **Object Definitions:**
-    *   Whitelisted clean ID names (e.g., `event_id`, `account_id`) in `searchable_fields` for Events, Badges, and Journals to support the new mapping logic.
-*   **Database Synchronization:**
-    *   Verified and resolved `v_journal_entry` missing column errors after user updated the view to include `account_id`.
+*   **V3 Hosted File Migration (Complete):**
+    *   **Stabilized Models:** Updated `Hosted_File_Base` and `Hosted_File_Link_Base` to prioritize integer IDs internally while ensuring random string mapping for the frontend.
+    *   **New Action Router:** Implemented `app/routers/api_v3_actions_hosted_file.py` containing specialized logic for Upload, Download (Streaming), and Relational Cleanup.
+    *   **Multi-File Upload:** Ported and enhanced upload logic to support `List[UploadFile]` with automatic SHA256 deduplication and relational linking.
+    *   **Intelligent Deletion:** Implemented orphan check logic; files are only physically removed if `rm_orphan=true` and no remaining `hosted_file_link` records exist.
+    *   **Frontend Guide:** Updated `V3_FRONTEND_API_GUIDE.md` with full documentation for the new V3 Action endpoints and synced it to `agents_sync`.
+*   **Database Integrity:**
+    *   Verified and corrected `hosted_file.account_id` to `int(11)`, resolving a legacy schema mistake.
+    *   Verified successful creation and cleanup of test records via new E2E test suite.
 
 ## Current To-Do List
 
@@ -69,4 +72,4 @@ This session focused on stabilizing the V3 search engine and enhancing the "ID V
     * Inspect the live log stream for regressions:
 
     1 "tail -n 20 ~/OSIT_dev/aether_container_env/logs/ae_api/aether_api.log"
-6. Finalize: Once verified, commit the changes with a descriptive message and sync relevant documentation.
+6. Finalize: Once verified, commit the changes with a descriptive message and sync relevant documentation.