add fellow - Ernesta Idzelyte (#2879)

* add fellow - Ernesta Idzelyte

* style: pre-commit fixes

* Update ernesta57.md

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Rob Tuck <robtuck@gmail.com>

Author: 3 people

_fellows/2026/ernesta57.md

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+---
+layout: fellow
+pagetype: fellow
+shortname: ernesta57
+permalink: /fellows/ernesta57.html
+fellow-name: Ernesta Idzelytė
+title: Ernesta Idzelytė - IRIS-HEP Fellow
+active: True
+dates:
+  start: 2026-07-01
+  end: 2026-09-23
+photo: /assets/images/team/fellows-2026/Ernesta-Idzelyte.jpg
+institution: Vilnius University
+e-mail: ernesta.idzelyte@ff.stud.vu.lt
+focus-area: as
+project_title: "Charged-Particles Reconstruction at Muon Colliders: 3D Sensor Charge Digitization Model"
+project_goal: >
+    Muon colliders are promising candidates for future experiments due to their ability to reach multi-TeV collision energies with more compact and cheaper designs. However, muon decays produce a large beam-induced background (BIB). This project aims to successfully implement the hybrid 3D pixel sensor digitization model into the Key4Hep-based muon collider software stack. Investigation of hit timing capabilities and detector occupancy in the presence of BIB can improve ”noise” rejection in the innermost layers of the detector with 3D sensor geometry.
+mentors:
+  - Angira Rastogi, (Lawrence Berkeley National Laboratory)
+  - Simone Pagan Griso, (Lawrence Berkeley National Laboratory)
+proposal: /assets/pdf/fellows-2026/LIT003-proposal-Ernesta-Idzelyte.pdf
+presentations:
+current_status: >
+github-username: ernesta57
+---