fix(sync): pick up aw-server-rust API-key JNI client and set data dir

[TimeToBuildBob]

Follow-up to ActivityWatch/aw-server-rust#666 (merged). Ships the v0.14.0b2 sync 401 fix into the app (ActivityWatch/aw-android#247).

Problem

Sync appeared to run but the chosen folder never changed: GET /api/0/buckets 401'd because the Android JNI client did not forward [auth].api_key from filesDir/config.toml.

Fix

• Bump aw-server-rust 77defef → 2ded7d7 (includes #666).
• Call SyncInterface.setDataDir(filesDir) after loadLibrary("aw_sync"). libaw_sync.so has its own ANDROID_DATA_DIR static; RustInterface.setDataDir only updates libaw_server.so. The hardcoded default is the release user-0 path — debug (.debug suffix) and work-profile installs still 401 without this.

XDG env (XDG_DATA_HOME=$filesDir/data) stays as the fallback for current Kotlin that had not called setDataDir.

Also picked up in the same bump: #654 (Rust panics to logcat, #220), #657, #658, #660, #661, #642.

Does not close #247: remaining items are sync UX/discoverability and category-import save persistence.

Testing

• JNI symbol Java_net_activitywatch_android_SyncInterface_setDataDir present at the pinned SHA.
• Local :mobile:compileDebugKotlin not run here (no JAVA_HOME on this host); CI build is the check.

[greptile-apps]

Greptile Summary

The PR updates the bundled Rust server and configures the separate sync native library to use the app-specific files directory.

• Advances the aw-server-rust submodule to include API-key forwarding support.
• Calls the sync library’s data-directory setter after loading libaw_sync.so, aligning its configuration path with the embedded server.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

Important Files Changed

Filename	Overview
mobile/src/main/java/net/activitywatch/android/SyncInterface.kt	Initializes the sync library with the application-specific files directory immediately after loading it.
aw-server-rust	Advances the native dependency to the revision containing the corresponding sync API-key and JNI support.

Sequence Diagram

sequenceDiagram
    participant K as SyncInterface
    participant N as libaw_sync.so
    participant C as filesDir/config.toml
    K->>K: Set XDG fallback paths
    K->>N: Load aw_sync
    K->>N: setDataDir(filesDir)
    N->>C: Read sync configuration and API key

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[TimeToBuildBob]

@greptileai review

[TimeToBuildBob]

CI-green and mergeable (Greptile 5/5) — waiting only on a maintainer click.

This PR is ready to merge, but the bot has pull-only access to this repo and can't self-merge — surfacing it here so it isn't lost. The monitoring loop will stop re-flagging it now that this note is posted.