docs: AGENTS.md recovery & language packs

AGENTS.md

@@ -13,8 +13,9 @@ Three repos cooperate:
 | `rubenslte/android_kernel_samsung_rubenslte` | Samsung msm8226 stock kernel, built from source |
 
 This drive builds from **source**: kernel, dt.img and ramdisk are all produced,
-never prebuilt. The artifact is `recovery.img` (currently 10,366,992 bytes,
-TWRP 3.7.0_9-0) and has passed on-device tests on real hardware.
+never prebuilt. The artifact is `recovery.img` (currently 10,479,632 bytes with
+the full 19-language pack set, TWRP 3.7.0_9-0) and has passed on-device tests
+on real hardware.
 
 ## Commands
 
@@ -52,8 +53,9 @@ Verification without nix (cheap): `bash -n build_twrp.sh`.
   the include-order reasoning.
 - **`mkbootimg.mk`**: the dt.img rule depends on `INSTALLED_KERNEL_TARGET`
   (not `TARGET_PREBUILT_INT_KERNEL`), and the recovery-ramdisk override
-  (drop tzdata, keep only en/pl languages, **LZMA** compression) is what keeps
-  the image under the 10,485,248-byte partition. Changing compression or adding
+  (drop tzdata + f2fs tools, **LZMA** compression) is what keeps the image
+  under the 10,485,248-byte partition. All 19 common TWRP language packs are
+  shipped as-is (10,479,632 packed). Changing compression or adding
   `twres/`/`system/` files can overflow it — always re-check image size.
 - **F2FS is off.** The kernel has no F2FS driver. Never re-add
   `TARGET_USERIMAGES_USE_F2FS`. `mkbootimg.mk` also deletes the f2fs tools from