Add separate Iron Coast mission, weapon and enemy mods with SD HD artwork and audio

examples/mods/iron_coast_boss/prompts/projectile-hd-v1.txt

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+Use case: style-transfer
+Asset type: transparent HD projectile sprite for hostile cannon fire in a top-down military science-fiction shoot-em-up.
+Input: original Raptor ESHOT_BLK 8×8 amber projectile, enlarged nearest-neighbor, is a reference for color and readability.
+Primary request: a single small compact circular amber/orange energy shell viewed directly overhead, bright pale-yellow center fading to orange metal/plasma rim, dark crisp outer edge. Match the naval steel/amber Raptor remaster style. It will be reduced to an 8×8 logical square, so keep a simple readable round footprint and avoid microdetails. This is one ammunition projectile, no weapon or spacecraft.
+Composition: perfectly centered isolated circular sprite on square canvas, visible orb occupies about62% width/height with equal large transparent margins. Keep all glow contained inside the circular orb, no external haze, shadow, trail or rays. Do not stretch it.
+Constraints: true transparent background, no extra objects, no checkerboard or black background baked into pixels, no text, logos, watermarks, perspective or decorative framing.

examples/mods/iron_coast_boss/prompts/unit-charge-v1.txt

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+Use case: precise-object-edit
+Asset type: second animation frame of the Iron Coast Command Cruiser boss HD sprite.
+Input image is the completed sprite edit target. Create a charged-weapons variant changing ONLY the existing small amber lamps and the two central circular side cannon wells: slightly brighten those lamps and illuminate inside each cannon well with a compact amber/orange core. Keep every hull panel, prong, silhouette edge, x/y anchor, exact 3:2 image dimensions, and camera view pixel-aligned with the input. No new external glow, muzzle flash, particles, smoke or shadow. Preserve the exact transparent background and empty side margins. Add a thin transparent margin around top/bottom if necessary to avoid edge clipping, but do not shift or reshape the vessel. Do not render a background, text, logos or watermarks. Single isolated overhead sprite facing DOWN.

examples/mods/iron_coast_boss/prompts/unit-hd-v1.txt

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+Use case: style-transfer
+Asset type: transparent HD enemy boss sprite for a top-down vertical shoot-em-up, Iron Coast Command Cruiser.
+Input image: original Raptor SHIP32G1_PIC (96×64 logical canvas, enlarged nearest-neighbor) is the source of truth for silhouette, proportions, center anchoring and DOWNWARD orientation.
+Primary request: regenerate the pictured large military science-fiction coastal command cruiser as clean HD game art. Preserve the original very specific shape: tall central armored hull oriented vertically nose DOWN, twin small stern engine towers at the TOP, wide lateral blocky wing/weapon platforms across the upper-middle, a central bridge/reactor block, and two prongs flanking the narrow lower bow. Keep all sections recognizable and in the same positions. Heavy naval steel/slate plates, subtle olive and brown industrial accents, bolted hatches, narrow amber status lamps, small red service panels. Original utilitarian Raptor overhead sprite style with sharper surface detail. It is one aircraft/hover cruiser rather than a ship floating in water.
+Composition: a WIDE 3:2 transparent canvas corresponding exactly to96×64 logical pixels. Full perfectly top-down view without perspective. Cruiser centered on x48,y32. Keep original transparent side margins: actual vessel about55% of canvas width and94% of canvas height, with no clipping or cropped tips. Bow points downward. Do not rotate or enlarge the vessel to fill the side margins. Gentle light from upper-left, crisp silhouette, no external shadow.
+Constraints: one isolated single sprite, true transparent background. No sea, terrain, floor, wake, exhaust trails, motion blur, text, logos, watermark, smoke, UI, borders or painted checkerboard. Preserve the attached silhouette and exact canvas proportions.