reworked find isolated connection; fixed computation error on geometry

[sventarika]

Reworked find_isolated_connections
Changed how _compute_segment_polygon combines the lanes for improved performance.

[Copilot]

Pull request overview

This PR updates Omega-Prime’s map segmentation logic by reworking how isolated lane connections are detected/merged into intersections and by changing how segment polygons are computed for improved performance and corrected geometry behavior.

Changes:

• Bump project version to 0.3.0.
• Update _compute_segment_polygon to buffer the combined lane centerlines directly and simplify the result before hull computation.
• Rework find_isolated_connections and adjust init_intersections ordering so components that border exactly one intersection can be absorbed into it.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 1 comment.

File	Description
pyproject.toml	Version bump to 0.3.0.
omega_prime/mapsegment.py	Simplifies segment polygon computation by buffering a MultiLineString and simplifying prior to hull.
omega_prime/maposicenterlinesegmentation.py	Reorders intersection initialization and reworks isolated-connection classification/absorption logic.
docs/notebooks/tutorial_projections.ipynb	Minor notebook source formatting change (newline removal).

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[Copilot]

segment_name_type = type(next(iter(self.lane_segment_dict.values()))) will raise StopIteration when lane_segment_dict is empty (e.g., recordings/maps with zero lanes). Consider deriving the SegmentName type without iterating values (e.g., define it once at class/init level and reuse), or guard with an early return when self.lane_segment_dict is empty.