[Infra] Move non-API-key CCI jobs to GitHub Actions

Principle: GHA handles work that doesn't need external API keys; CCI
stays for integration tests that hit real API endpoints.

Four CCI jobs moved to new or extended GHA workflows:

1. check_code_and_doc_quality (was 25 runs: ruff + import-safety +
   21 code_coverage_tests + 3 documentation_tests + circular-imports).
   - The 21 tests/code_coverage_tests/*.py scripts and the 3
     tests/documentation_tests/*.py scripts run in the new
     .github/workflows/test-code-quality.yml workflow.
   - ruff, import-safety, and circular-imports were already run by
     .github/workflows/test-linting.yml — no new migration needed.
   - The 3 documentation_tests scripts read
     docs/my-website/docs/proxy/config_settings.md. Since docs have
     moved to BerriAI/litellm-docs, the GHA workflow checks out that
     repo and symlinks docs/my-website -> the checkout so the
     existing hardcoded paths resolve without touching the scripts.
     The stale local docs/my-website/ copy in this repo will be
     removed in a separate PR.

2. semgrep (custom-rule SAST against .semgrep/rules).
   - New .github/workflows/test-semgrep.yml.

3. installing_litellm_on_python + installing_litellm_on_python_3_13
   (pip install compat checks on Python 3.12 and 3.13).
   - New .github/workflows/test-install-litellm.yml as a matrix job.
   - 3.12 run also verifies litellm_enterprise import; 3.13 run
     skips that check (matches previous CCI behavior).
   - installing_litellm_on_python_v2_migration_resolver stays in CCI
     because it requires a postgres service.

CCI .circleci/config.yml: -112 lines, 4 jobs and their workflow refs
removed.

.github/workflows/test-code-quality.yml

@@ -0,0 +1,136 @@
+name: Code Quality Checks
+
+on:
+  pull_request:
+    branches:
+      - main
+      - litellm_internal_staging
+      - litellm_oss_branch
+      - "litellm_**"
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  code-quality:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+
+    steps:
+      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
+
+      - name: Checkout litellm-docs (for documentation_tests)
+        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          repository: BerriAI/litellm-docs
+          path: _litellm_docs_checkout
+          persist-credentials: false
+
+      - name: Wire up docs path expected by documentation_tests/*
+        run: |
+          # documentation_tests scripts read from docs/my-website/docs/...
+          # In litellm-docs the same files live at docs/... (repo root).
+          # Point docs/my-website -> litellm-docs checkout so the paths resolve.
+          rm -rf docs/my-website
+          ln -s ../_litellm_docs_checkout docs/my-website
+
+      - name: Set up Python
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        with:
+          python-version: "3.12"
+
+      - name: Set up uv
+        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7
+        with:
+          version: "0.10.9"
+
+      - name: Cache uv dependencies
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        with:
+          path: |
+            ~/.cache/uv
+            .venv
+          key: ${{ runner.os }}-uv-${{ hashFiles('uv.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-uv-
+
+      - name: Install dependencies
+        run: uv sync --frozen --all-groups --all-extras
+
+      - name: check_licenses
+        run: uv run --no-sync python ./tests/code_coverage_tests/check_licenses.py
+
+      - name: check_provider_folders_documented
+        run: uv run --no-sync python ./tests/code_coverage_tests/check_provider_folders_documented.py
+
+      - name: router_code_coverage
+        run: uv run --no-sync python ./tests/code_coverage_tests/router_code_coverage.py
+
+      - name: test_chat_completion_imports
+        run: uv run --no-sync python ./tests/code_coverage_tests/test_chat_completion_imports.py
+
+      - name: info_log_check
+        run: uv run --no-sync python ./tests/code_coverage_tests/info_log_check.py
+
+      - name: check_guardrail_apply_decorator
+        run: uv run --no-sync python ./tests/code_coverage_tests/check_guardrail_apply_decorator.py
+
+      - name: test_ban_set_verbose
+        run: uv run --no-sync python ./tests/code_coverage_tests/test_ban_set_verbose.py
+
+      - name: code_qa_check_tests
+        run: uv run --no-sync python ./tests/code_coverage_tests/code_qa_check_tests.py
+
+      - name: check_get_model_cost_key_performance
+        run: uv run --no-sync python ./tests/code_coverage_tests/check_get_model_cost_key_performance.py
+
+      - name: test_proxy_types_import
+        run: uv run --no-sync python ./tests/code_coverage_tests/test_proxy_types_import.py
+
+      - name: callback_manager_test
+        run: uv run --no-sync python ./tests/code_coverage_tests/callback_manager_test.py
+
+      - name: recursive_detector
+        run: uv run --no-sync python ./tests/code_coverage_tests/recursive_detector.py
+
+      - name: test_router_strategy_async
+        run: uv run --no-sync python ./tests/code_coverage_tests/test_router_strategy_async.py
+
+      - name: litellm_logging_code_coverage
+        run: uv run --no-sync python ./tests/code_coverage_tests/litellm_logging_code_coverage.py
+
+      - name: ensure_async_clients_test
+        run: uv run --no-sync python ./tests/code_coverage_tests/ensure_async_clients_test.py
+
+      - name: enforce_llms_folder_style
+        run: uv run --no-sync python ./tests/code_coverage_tests/enforce_llms_folder_style.py
+
+      - name: prevent_key_leaks_in_exceptions
+        run: uv run --no-sync python ./tests/code_coverage_tests/prevent_key_leaks_in_exceptions.py
+
+      - name: check_unsafe_enterprise_import
+        run: uv run --no-sync python ./tests/code_coverage_tests/check_unsafe_enterprise_import.py
+
+      - name: ban_copy_deepcopy_kwargs
+        run: uv run --no-sync python ./tests/code_coverage_tests/ban_copy_deepcopy_kwargs.py
+
+      - name: check_fastuuid_usage
+        run: uv run --no-sync python ./tests/code_coverage_tests/check_fastuuid_usage.py
+
+      - name: memory_test
+        run: uv run --no-sync python ./tests/code_coverage_tests/memory_test.py
+
+      - name: documentation_test_env_keys
+        run: uv run --no-sync python ./tests/documentation_tests/test_env_keys.py
+
+      - name: documentation_test_router_settings
+        run: uv run --no-sync python ./tests/documentation_tests/test_router_settings.py
+
+      - name: documentation_test_api_docs
+        run: uv run --no-sync python ./tests/documentation_tests/test_api_docs.py