feat: unified task.json schema migration and multi-module updates

- Create task-schema.json (JSON Schema draft-07) with 10 field blocks fusing
  Unified JSONL, 6-field Task JSON, and Solution Schema advantages
- Migrate unified-execute-with-file from JSONL to .task/*.json directory scanning
- Migrate 3 producers (lite-plan, plan-converter, collaborative-plan) to
  .task/*.json multi-file output
- Add review-cycle Phase 7.5 export-to-tasks (FIX-*.json) and issue-resolve
  --export-tasks option
- Add schema compatibility annotations to action-planning-agent, workflow-plan,
  and tdd-plan
- Add spec-generator skill phases and templates
- Add memory v2 pipeline (consolidation, extraction, job scheduler, embedder)
- Add secret-redactor utility and core-memory enhancements
- Add codex-lens accuracy benchmarks and staged env config overrides

codex-lens/tests/test_config_staged_env_overrides.py

@@ -0,0 +1,117 @@
+"""Unit tests for Config .env overrides for staged/cascade settings."""
+
+from __future__ import annotations
+
+import tempfile
+from pathlib import Path
+
+import pytest
+
+from codexlens.config import Config
+
+
+@pytest.fixture
+def temp_config_dir() -> Path:
+    """Create temporary directory for config data_dir."""
+    tmpdir = tempfile.TemporaryDirectory(ignore_cleanup_errors=True)
+    yield Path(tmpdir.name)
+    try:
+        tmpdir.cleanup()
+    except (PermissionError, OSError):
+        pass
+
+
+def test_staged_env_overrides_apply(temp_config_dir: Path) -> None:
+    config = Config(data_dir=temp_config_dir)
+
+    env_path = temp_config_dir / ".env"
+    env_path.write_text(
+        "\n".join(
+            [
+                "ENABLE_CASCADE_SEARCH=true",
+                "CASCADE_STRATEGY=staged",
+                "CASCADE_COARSE_K=111",
+                "CASCADE_FINE_K=7",
+                "STAGED_STAGE2_MODE=realtime",
+                "STAGED_CLUSTERING_STRATEGY=path",
+                "STAGED_CLUSTERING_MIN_SIZE=5",
+                "ENABLE_STAGED_RERANK=false",
+                "STAGED_REALTIME_LSP_TIMEOUT_S=12.5",
+                "STAGED_REALTIME_LSP_DEPTH=2",
+                "STAGED_REALTIME_LSP_MAX_NODES=123",
+                "STAGED_REALTIME_LSP_MAX_SEEDS=3",
+                "STAGED_REALTIME_LSP_MAX_CONCURRENT=4",
+                "STAGED_REALTIME_LSP_WARMUP_S=0.25",
+                "STAGED_REALTIME_LSP_RESOLVE_SYMBOLS=yes",
+                "",
+            ]
+        ),
+        encoding="utf-8",
+    )
+
+    config.load_settings()
+
+    assert config.enable_cascade_search is True
+    assert config.cascade_strategy == "staged"
+    assert config.cascade_coarse_k == 111
+    assert config.cascade_fine_k == 7
+
+    assert config.staged_stage2_mode == "realtime"
+    assert config.staged_clustering_strategy == "path"
+    assert config.staged_clustering_min_size == 5
+    assert config.enable_staged_rerank is False
+    assert config.staged_realtime_lsp_timeout_s == 12.5
+    assert config.staged_realtime_lsp_depth == 2
+    assert config.staged_realtime_lsp_max_nodes == 123
+    assert config.staged_realtime_lsp_max_seeds == 3
+    assert config.staged_realtime_lsp_max_concurrent == 4
+    assert config.staged_realtime_lsp_warmup_s == 0.25
+    assert config.staged_realtime_lsp_resolve_symbols is True
+
+
+def test_staged_env_overrides_prefixed_wins(temp_config_dir: Path) -> None:
+    config = Config(data_dir=temp_config_dir)
+
+    env_path = temp_config_dir / ".env"
+    env_path.write_text(
+        "\n".join(
+            [
+                "STAGED_CLUSTERING_STRATEGY=score",
+                "CODEXLENS_STAGED_CLUSTERING_STRATEGY=path",
+                "STAGED_STAGE2_MODE=precomputed",
+                "CODEXLENS_STAGED_STAGE2_MODE=realtime",
+                "",
+            ]
+        ),
+        encoding="utf-8",
+    )
+
+    config.load_settings()
+
+    assert config.staged_clustering_strategy == "path"
+    assert config.staged_stage2_mode == "realtime"
+
+
+def test_staged_env_overrides_invalid_ignored(temp_config_dir: Path) -> None:
+    config = Config(data_dir=temp_config_dir)
+
+    env_path = temp_config_dir / ".env"
+    env_path.write_text(
+        "\n".join(
+            [
+                "STAGED_STAGE2_MODE=bogus",
+                "STAGED_CLUSTERING_STRATEGY=embedding_remote",
+                "STAGED_REALTIME_LSP_TIMEOUT_S=nope",
+                "CASCADE_STRATEGY=???",
+                "",
+            ]
+        ),
+        encoding="utf-8",
+    )
+
+    config.load_settings()
+
+    assert config.cascade_strategy == "binary"
+    assert config.staged_stage2_mode == "precomputed"
+    assert config.staged_clustering_strategy == "auto"
+    assert config.staged_realtime_lsp_timeout_s == 30.0