fix: use cwd instead of __file__ for config path resolution

Fixes config file not found error when installed via pip

python/obsidian_rag/config.py

@@ -34,14 +34,22 @@ class IndexingConfig:
     chunk_overlap: int = 100
     file_patterns: list[str] = field(default_factory=lambda: ["*.md"])
     deny_dirs: list[str] = field(
-        default_factory=lambda: [".obsidian", ".trash", "zzz-Archive", ".git", ".logseq"]
+        default_factory=lambda: [
+            ".obsidian",
+            ".trash",
+            "zzz-Archive",
+            ".git",
+            ".logseq",
+        ]
     )
     allow_dirs: list[str] = field(default_factory=list)
 
 
 @dataclass
 class SecurityConfig:
-    require_confirmation_for: list[str] = field(default_factory=lambda: ["health", "financial_debt"])
+    require_confirmation_for: list[str] = field(
+        default_factory=lambda: ["health", "financial_debt"]
+    )
     sensitive_sections: list[str] = field(
         default_factory=lambda: ["#mentalhealth", "#physicalhealth", "#Relations"]
     )
@@ -73,11 +81,15 @@ class ObsidianRagConfig:
 
 def _resolve_data_dir() -> Path:
     """Resolve the data directory: dev (project root/obsidian-rag/) or production (~/.obsidian-rag/)."""
-    dev_data_dir = DEFAULT_CONFIG_DIR / "obsidian-rag"
-    if dev_data_dir.exists() or (DEFAULT_CONFIG_DIR / "KnowledgeVault").exists():
+    import os as osmod
+
+    # Use cwd for dev detection to handle pip install scenarios
+    cwd = Path(osmod.getcwd())
+    dev_data_dir = cwd / "obsidian-rag"
+    if dev_data_dir.exists() or (cwd / "KnowledgeVault").exists():
         return dev_data_dir
     # Production: ~/.obsidian-rag/
-    return Path(os.path.expanduser("~/.obsidian-rag"))
+    return Path(osmod.path.expanduser("~/.obsidian-rag"))
 
 
 def load_config(config_path: str | Path | None = None) -> ObsidianRagConfig:
@@ -105,7 +117,9 @@ def load_config(config_path: str | Path | None = None) -> ObsidianRagConfig:
 
 def _merge(default: Any, overrides: dict[str, Any]) -> Any:
     """Shallow-merge a dict into a dataclass instance."""
-    if not isinstance(default, type) and not isinstance(default, (list, dict, str, int, float, bool)):
+    if not isinstance(default, type) and not isinstance(
+        default, (list, dict, str, int, float, bool)
+    ):
         # It's a dataclass instance — merge fields
         if hasattr(default, "__dataclass_fields__"):
             fields = {}
@@ -113,7 +127,9 @@ def _merge(default: Any, overrides: dict[str, Any]) -> Any:
                 if key in default.__dataclass_fields__:
                     field_def = default.__dataclass_fields__[key]
                     actual_default = field_def.default
-                    if isinstance(actual_default, type) and issubclass(actual_default, Enum):
+                    if isinstance(actual_default, type) and issubclass(
+                        actual_default, Enum
+                    ):
                         # Enum fields need special handling
                         fields[key] = val
                     elif isinstance(val, dict):
@@ -130,16 +146,22 @@ def _merge(default: Any, overrides: dict[str, Any]) -> Any:
 
 def resolve_vault_path(config: ObsidianRagConfig) -> Path:
     """Resolve vault_path relative to project root or as absolute."""
+    import os as osmod
+
+    cwd = Path(osmod.getcwd())
     vp = Path(config.vault_path)
     if vp.is_absolute():
         return vp
     # Resolve relative to project root
-    return (DEFAULT_CONFIG_DIR / vp).resolve()
+    return (cwd / vp).resolve()
 
 
 def resolve_vector_db_path(config: ObsidianRagConfig) -> Path:
     """Resolve vector store path relative to data directory."""
-    data_dir = _resolve_data_dir()
+    import os as osmod
+
+    cwd = Path(osmod.getcwd())
+    data_dir = cwd / "obsidian-rag"
     vsp = Path(config.vector_store.path)
     if vsp.is_absolute():
         return vsp