refactor: update testing execution model and dependencies

Author: HosseinNejatiJavaremi

.cursor/rules/testing-bdd.mdc

@@ -69,9 +69,11 @@ Sync operations work fine inside `async def` steps, so steps with mixed sync/asy
 
 The only place `asyncio.run()` is acceptable is in **non-step** callbacks (e.g. `scenario_context.py` cleanup methods) that may be called from outside an event loop.
 
-## Parallel Execution
+## Test Execution Model
 
-Behave is configured to run with **8 parallel workers** (multiprocessing). Steps must not share mutable global state across scenarios.
+`make behave` uses stock Behave, which runs **sequentially** (one scenario at a time).
+
+Steps must not share mutable global state across scenarios — use `get_current_scenario_context(context)` and `ScenarioContext` for per-scenario isolation.
 
 ## Linting Exclusions
 

AGENTS.md

@@ -39,8 +39,8 @@ Import direction (one-way): `configs ← models ← helpers ← adapters`
 ## Testing
 
 - BDD steps use native `async def` (no `asyncio.run()` wrapper)
-- Parallel execution: 8 workers (multiprocessing)
-- Steps must not share mutable global state
+- Sequential execution (`make behave` runs one scenario at a time)
+- Steps must not share mutable global state across scenarios
 
 ## Dev Setup
 

docs/getting-started/project_structure.md

@@ -151,7 +151,7 @@ BDD acceptance tests live at the **project root** in a `features/` directory, fo
 | `features/scenario_context_pool_manager.py` | Singleton pool mapping scenario ID → `ScenarioContext`          |
 | `features/environment.py`                   | `behave` hooks — container setup and teardown                   |
 
-`ScenarioContext` prevents cross-contamination between parallel scenarios by giving each one its own isolated storage.
+`ScenarioContext` prevents cross-contamination between scenarios by giving each one its own isolated storage.
 `ScenarioContextPoolManager` (a `Singleton`) creates or retrieves the context for a given scenario ID and disposes of it
 after the scenario completes.
 

pyproject.toml

@@ -411,9 +411,6 @@ exclude_dirs = ["features", "docs", "scripts"]
 skips = ["B101", "B301", "B403"]
 
 [tool.behave]
-# Parallel execution settings
-parallel = 8
-parallel_scheme = "multiprocessing"
 
 # Output formatting
 show_snippets = false