fix: add custom exceptions (#29)

* feat: add custom exceptions to metadata creation

* refactor: utility function for finding inline metadata in content

* fix: use InlineTagError for exceptions parsing inline tags

* fix: improve error messages

* build(deps): bump dependencies

* fix: use BadParameter exception when appropriate

src/obsidian_metadata/models/exceptions.py

@@ -0,0 +1,17 @@
+"""Custom exceptions for the obsidian_metadata package."""
+
+
+class ObsidianMetadataError(Exception):
+    """Base exception for the obsidian_metadata package."""
+
+
+class FrontmatterError(ObsidianMetadataError):
+    """Exception for errors in the frontmatter."""
+
+
+class InlineMetadataError(ObsidianMetadataError):
+    """Exception for errors in the inlined metadata."""
+
+
+class InlineTagError(ObsidianMetadataError):
+    """Exception for errors in the inline tags."""