update docs

docs/thijooree/09-activities.md

@@ -8,6 +8,14 @@ The activities screen shows a local log of completed transfers initiated within
 
 Displays a chronological `RecyclerView` of locally stored transfer records. These records are written by the app at transfer completion time — they are not fetched from bank APIs.
 
+A search bar at the top filters loaded entries by recipient label / account / remarks (`ActivitiesFragment.kt:52-58`).
+
+### Storage
+
+Backed by `util/ReceiptStore` — a single encrypted JSON file at `filesDir/activities.json` (via `CacheEncryption`). Each entry is a `TransferReceiptData` plus a `savedAt` timestamp.
+
+Only successful transfers are saved. The save call is guarded by `ok && receipt != null` (`TransferFragment.kt:1201`), so there is no "Failed" status — failures stay as a toast / dialog and never persist.
+
 ---
 
 ## Activity List
@@ -17,7 +25,6 @@ Each row shows:
 - Recipient name and account number
 - Transfer amount (hidden as `••••` when hide-amounts is active)
 - Date and time
-- Status badge (Completed / Failed)
 
 Tapping a row opens `TransferReceiptFragment` for that record.
 
@@ -29,26 +36,24 @@ A full-screen receipt view shown immediately after a successful transfer and acc
 
 ### Receipt Fields
 
-| Field | Notes |
+Schema: `TransferReceiptData` in `ui/home/TransferReceiptData.kt`.
+
+| Field | Source |
 |---|---|
-| Bank | Source bank logo and name |
-| From account | Sender account number |
-| To account | Recipient account number |
-| Recipient name | As resolved at transfer time |
-| Amount | Formatted with currency |
-| Remarks | Transfer purpose text |
-| Reference number | Bank-issued transaction reference |
-| Date and time | Transfer timestamp |
-| Status | Completed / Failed |
+| `bank` | `"MIB"` / `"BML"` / `"FAHIPAY"` |
+| `amount` / `currency` | Entered + source-account currency |
+| `fromLabel` / `fromColorHex` / `fromProfileImageHash` | Captured source account display |
+| `toLabel` / `toAccount` / `toBank` | Resolved recipient |
+| `remarks` | Free text the user entered |
+| `mibReferenceNo` / `mibTransactionDate` | Populated for MIB transfers |
+| `bmlFromName` / `bmlReference` / `bmlTimestamp` / `bmlMessage` | Populated for BML transfers |
 
 ### Actions
 
-- **Share** — generates a text or image summary of the receipt and opens the system share sheet
-- **Save to Gallery** — renders the receipt as a bitmap and saves it to the device's Pictures folder (requires `WRITE_EXTERNAL_STORAGE` on API < 29, or `MediaStore` on API 29+)
+- **Share** — `captureReceiptBitmap()` uses `PixelCopy` over the receipt card, writes a PNG to `cacheDir/receipts/`, exposes it via `FileProvider`, and fires `ACTION_SEND`
+- **Save to Gallery** — same capture, then writes to `MediaStore.Images` (`Pictures/`) on API 29+ or directly to `Environment.DIRECTORY_PICTURES` on older releases
 
-### Screenshot Note
-
-If `FLAG_SECURE` is active (user has enabled the screenshots restriction), the Save to Gallery action uses an off-screen rendering path that bypasses the restriction for the explicit save action only.
+`PixelCopy` reads from the window surface, so both actions fail while `FLAG_SECURE` is active. There is no off-screen rendering fallback.
 
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