v0.6.1 — handheld Milky Way foreground de-ghost

--no-tripod — recover a sharp foreground from a hand-held Milky Way stack

Star-aligned stacking sharpens the sky but smears the fixed foreground (house / trees / wires) into a ghost when frames are shot hand-held. dso-milky-way --no-tripod keeps the deep stacked sky and paints the foreground back in from a single sharp frame.

• Foreground found from per-pixel variance across the registered frames (sky is aligned = still; foreground moves) — no horizon line to draw. Sky = the low-variance region flood-filled from the image centre; interior/tiny false positives are folded back to sky (border-touch + size guards) so they never render as black blobs.
• New deghost finish stage (resume-safe; no-ops cleanly without registered frames). New pipeline.no_tripod config block; --no-tripod flag (wide mode only).

Changed

• milkyway_finish defaults retuned for a dark sky with the Milky Way popping (autostretch_bg 0.20→0.10, clip -2.5→-2.9, satu 0.5→0.85).

Notes

• The ragged hand-held border is best trimmed with an explicit --crop "X Y W H" box.
• Regression-tested across every mode; no regressions. Full details in CHANGELOG.

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