chore: update file permissions to executable across repository

- Change file mode from 644 to 755 for all project files
- Add chain_id parameter to get_balance RPC endpoint with default "ait-devnet"
- Rename Miner.extra_meta_data to extra_metadata for consistency

.pre-commit-config.yaml

@@ -0,0 +1,102 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-added-large-files
+      - id: check-json
+      - id: check-merge-conflict
+      - id: debug-statements
+      - id: check-docstring-first
+      - id: check-executables-have-shebangs
+      - id: check-toml
+      - id: check-xml
+      - id: check-case-conflict
+      - id: check-ast
+      - id: check-builddir
+      - id: check-shebang-scripts
+
+  - repo: https://github.com/psf/black
+    rev: 23.3.0
+    hooks:
+      - id: black
+        language_version: python3
+        args: [--line-length=127]
+
+  - repo: https://github.com/pycqa/isort
+    rev: 5.12.0
+    hooks:
+      - id: isort
+        args: [--profile=black, --line-length=127]
+
+  - repo: https://github.com/pycqa/flake8
+    rev: 6.0.0
+    hooks:
+      - id: flake8
+        args: [--max-line-length=127, --extend-ignore=E203,W503]
+
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.3.0
+    hooks:
+      - id: mypy
+        additional_dependencies: [types-requests, types-python-dateutil]
+        args: [--ignore-missing-imports]
+
+  - repo: https://github.com/PyCQA/bandit
+    rev: 1.7.5
+    hooks:
+      - id: bandit
+        args: [-r, ., -f, json, -o, bandit-report.json]
+        pass_filenames: false
+
+  - repo: https://github.com/pycqa/pydocstyle
+    rev: 6.3.0
+    hooks:
+      - id: pydocstyle
+        args: [--convention=google]
+
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v3.3.1
+    hooks:
+      - id: pyupgrade
+        args: [--py311-plus]
+
+  - repo: https://github.com/Lucas-C/pre-commit-hooks-safety
+    rev: v1.3.2
+    hooks:
+      - id: python-safety-dependencies-check
+        files: requirements.*\.txt$
+
+  - repo: https://github.com/Lucas-C/pre-commit-hooks-safety
+    rev: v1.3.2
+    hooks:
+      - id: python-safety-check
+        args: [--json, --output, safety-report.json]
+
+  - repo: local
+    hooks:
+      - id: pytest-check
+        name: pytest-check
+        entry: pytest
+        language: system
+        args: [tests/unit/, --tb=short, -q]
+        pass_filenames: false
+        always_run: true
+
+      - id: security-check
+        name: security-check
+        entry: pytest
+        language: system
+        args: [tests/security/, --tb=short, -q]
+        pass_filenames: false
+        always_run: true
+
+      - id: performance-check
+        name: performance-check
+        entry: pytest
+        language: system
+        args: [tests/performance/test_performance_lightweight.py::TestPerformance::test_cli_performance, --tb=short, -q]
+        pass_filenames: false
+        always_run: true