Unexpected 'No Active Session' modal triggers during fishing rod gameplay

### Build version
v0.163.0-alpha-main

### Issue Description
While jumping and running around during fishing at the pond, an unexpected "No Active Session" modal appeared. The modal should not surface during normal gameplay interactions — it likely indicates the scene session state is being incorrectly evaluated or interrupted while the fishing rod is active and the player is moving.

The Player.log shows repeated scene reloads for parcels (-4, -4) and (2, -4) during the session, along with `Curl error 42: Callback aborted` errors, which may be contributing to the session state becoming invalid.

### STR (Steps to Reproduce)
1. Open the app
2. Cast a fishing line at the pond
3. Jump and run around while the line is cast

### Expected Result
No modal should appear; gameplay should continue normally.

### Actual Result with evidence
A "No Active Session" modal appeared unexpectedly during fishing/jumping gameplay.

Log observations:
- Scenes `(-4, -4)` and `(2, -4)` reloaded multiple times during the session (possible scene instability)
- Multiple `Curl error 42: Callback aborted` errors
- Active feature flags: `alfa-double-jump`, `alfa-gliding`

### Reproduction
Unknown (Reproduction Index: 1/10)

### Operative system and additional Notes
- OS: Windows 11 (10.0.26200)
- Hardware: AMD Ryzen 5 5600G, NVIDIA GeForce RTX 3060 (12 GB VRAM), 48 GB RAM
- Unity: 6000.4.0f1

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Reported by Daf
Requested by Dawid Krajewski (<@U079GRD9WTZ>)

Start by reproducing the fishing, jumping, and running sequence in the Unity client on Windows 11, then inspect Player.log around the "No Active Session" modal, parcel scene reloads, and Curl error 42 entries. The issue is done when the modal no longer appears during normal fishing gameplay, with the relevant session behavior verified against the reproduction steps.

Written by the indexing model from the issue text.