Chak Star Alignment
Draws star-pattern chak-to-sub-chak alignments, with a toolbar button and its own dialog (not just a Processing script) - shortest distance or highest elevation, with optional DEM/contour-based auto outlet placement.
Adds a Processing algorithm, "Star Alignment - Chak Outlet to Sub-Chak Boundaries", under the "Chak Design" group. Matches outlet points and sub-chak polygons to their parent chak polygon purely by spatial location (point-in-polygon / centroid-in-polygon) - no shared chak ID or sub-chak ID field needed. Draws the shortest possible line from each chak's outlet to the nearest point on each sub-chak boundary, entering 2-3m inside the boundary. The sub-chak that contains the outlet itself gets a fixed-length alignment instead of a zero-length line. All 3 layers should be in the same projected CRS so output lengths are in meters.