fix(rewards): add support for new /earn dashboard and Explore on Bing…

[phanex]

Summary

Resolves #603 ("App-only daily offers are missing from the parsed dashboard") and adds support for Microsoft's new /earn tab architecture (https://rewards.bing.com/earn).

Background & Context

• Microsoft recently migrated daily sets and introduced new "Explore on Bing" activities under the /earn dashboard.
• In the legacy API (rewards.bing.com/api/getuserinfo), these activities appeared with &rnoreward=1 and exclusiveLockedFeatureStatus: "notsupported", leading to assumptions that they were locked or mobile app-exclusive (issue App-only daily offers are missing from the parsed dashboard #603).
• In reality, these activities can be completely automated through /earn RSC flight payload parsing and subsequent Bing searches.

Key Changes

1. RSC Flight Stream Parsing (ReactFunc.ts):
   • Parses /earn flight chunks to detect exploreonbing cards, fallback titles, and points.
2. Server Action & Activity Completion (UrlReward.ts, PromotionActivityRunner.ts, SearchOnBingShared.ts):
   • Updates target URLs, referers, and router tree to /earn.
   • Triggers the activation server action and completes the card with targeted Bing queries from bing-search-activity-queries.json.
3. Daily Set & Promotion Fallback (DailySet.ts, MorePromotions.ts):
   • Ingests reportable items directly from reactSnapshot when legacy API lists 0 remaining activities.
4. Verified in Both Headless and GUI Modes:
   • Tested and verified in standard headful (GUI) browser mode.
   • Tested and verified in fully headless mode ("headless": true), including Passkey/KMSI authentication and point awarding (+40/+50 pts).

Verification

• Tested with multiple active accounts across different locales (DE, etc.).
• Confirmed all daily quests and "Explore on Bing" activities complete successfully and award points in both headless and non-headless environments.