feat(assets): 디지털렌트매니저 아이콘(집+체크·스퀴클) PNG 세트 및 생성 스크립트 추가\n\n- 경로: assets/app_icon/house_check/{32..1024}.png\n- 스크립트: scripts/render_icon.py (무의존 PNG 렌더) / scripts/generate_icons.sh

scripts/generate_icons.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+OUT_DIR="assets/app_icon/house_check"
+SIZES=(1024 512 256 192 128 96 64 48 32)
+
+mkdir -p "$OUT_DIR"
+python3 scripts/render_icon.py "$OUT_DIR" "${SIZES[@]}"
+
+echo "\n아이콘 생성 완료: $OUT_DIR"

scripts/render_icon.py

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+#!/usr/bin/env python3
+"""
+Generate squircle app icons with a house + check mark glyph.
+
+No external dependencies. Writes PNGs using zlib and CRC via stdlib.
+
+Usage:
+  python3 scripts/render_icon.py assets/app_icon/house_check 1024 512 256 192 128 96 64 48 32
+"""
+import os
+import sys
+import math
+import struct
+import zlib
+from typing import List, Tuple
+
+
+NAVY = (0x0F, 0x17, 0x2A, 255)  # #0F172A
+WHITE = (255, 255, 255, 255)
+GREEN = (0x10, 0xB9, 0x81, 255)  # #10B981
+
+
+def srgb_to_lin(c: float) -> float:
+    c = c / 255.0
+    if c <= 0.04045:
+        return c / 12.92
+    return ((c + 0.055) / 1.055) ** 2.4
+
+
+def lin_to_srgb(c: float) -> int:
+    if c <= 0.0031308:
+        v = 12.92 * c
+    else:
+        v = 1.055 * (c ** (1.0 / 2.4)) - 0.055
+    return max(0, min(255, int(round(v * 255.0))))
+
+
+def over(dst: Tuple[float, float, float, float], src: Tuple[float, float, float, float]):
+    # dst, src in linear space RGBA (0..1)
+    dr, dg, db, da = dst
+    sr, sg, sb, sa = src
+    out_a = sa + da * (1.0 - sa)
+    if out_a == 0.0:
+        return (0.0, 0.0, 0.0, 0.0)
+    out_r = (sr * sa + dr * da * (1.0 - sa)) / out_a
+    out_g = (sg * sa + dg * da * (1.0 - sa)) / out_a
+    out_b = (sb * sa + db * da * (1.0 - sa)) / out_a
+    return (out_r, out_g, out_b, out_a)
+
+
+def to_lin_rgba(color: Tuple[int, int, int, int], alpha_scale: float = 1.0):
+    r, g, b, a = color
+    return (
+        srgb_to_lin(r),
+        srgb_to_lin(g),
+        srgb_to_lin(b),
+        (a / 255.0) * alpha_scale,
+    )
+
+
+def point_in_triangle(px, py, ax, ay, bx, by, cx, cy) -> bool:
+    # Barycentric technique
+    v0x, v0y = cx - ax, cy - ay
+    v1x, v1y = bx - ax, by - ay
+    v2x, v2y = px - ax, py - ay
+    dot00 = v0x * v0x + v0y * v0y
+    dot01 = v0x * v1x + v0y * v1y
+    dot02 = v0x * v2x + v0y * v2y
+    dot11 = v1x * v1x + v1y * v1y
+    dot12 = v1x * v2x + v1y * v2y
+    denom = dot00 * dot11 - dot01 * dot01
+    if denom == 0:
+        return False
+    inv = 1.0 / denom
+    u = (dot11 * dot02 - dot01 * dot12) * inv
+    v = (dot00 * dot12 - dot01 * dot02) * inv
+    return (u >= 0) and (v >= 0) and (u + v <= 1)
+
+
+def point_in_rect(px, py, x0, y0, x1, y1) -> bool:
+    return (x0 <= px <= x1) and (y0 <= py <= y1)
+
+
+def dist_point_to_segment(px, py, ax, ay, bx, by) -> float:
+    abx, aby = bx - ax, by - ay
+    apx, apy = px - ax, py - ay
+    ab2 = abx * abx + aby * aby
+    if ab2 == 0:
+        dx, dy = px - ax, py - ay
+        return math.hypot(dx, dy)
+    t = (apx * abx + apy * aby) / ab2
+    if t < 0:
+        t = 0
+    elif t > 1:
+        t = 1
+    hx, hy = ax + t * abx, ay + t * aby
+    dx, dy = px - hx, py - hy
+    return math.hypot(dx, dy)
+
+
+def inside_superellipse(u: float, v: float, n: float = 4.5) -> bool:
+    # map [0,1] -> [-1,1]
+    x = 2.0 * u - 1.0
+    y = 2.0 * v - 1.0
+    return (abs(x) ** n + abs(y) ** n) <= 1.0
+
+
+def render_icon(size: int) -> bytes:
+    # 2x2 supersampling
+    samples = [(0.25, 0.25), (0.75, 0.25), (0.25, 0.75), (0.75, 0.75)]
+
+    # House geometry (normalized 0..1)
+    roof = (0.28, 0.46, 0.50, 0.30, 0.72, 0.46)  # (ax,ay,bx,by,cx,cy)
+    body = (0.32, 0.46, 0.68, 0.76)  # (x0,y0,x1,y1)
+
+    # Check path
+    chk_a = (0.33, 0.60)
+    chk_b = (0.46, 0.74)
+    chk_c = (0.72, 0.48)
+    thickness = 0.08  # relative to width
+
+    lin_bg = to_lin_rgba(NAVY)
+    lin_white = to_lin_rgba(WHITE)
+    lin_green = to_lin_rgba(GREEN)
+
+    out = bytearray(size * size * 4)
+    idx = 0
+    for j in range(size):
+        for i in range(size):
+            # Accumulate in linear
+            dst = (0.0, 0.0, 0.0, 0.0)
+
+            cov_bg = 0.0
+            cov_house = 0.0
+            cov_check = 0.0
+            for (ox, oy) in samples:
+                u = (i + ox) / size
+                v = (j + oy) / size
+
+                if inside_superellipse(u, v):
+                    cov_bg += 1.0
+
+                    hx = 0
+                    # house coverage (triangle or rect)
+                    if point_in_triangle(u, v, *roof):
+                        hx = 1
+                    elif point_in_rect(u, v, *body):
+                        hx = 1
+                    cov_house += hx
+
+                    # check coverage by distance to segments
+                    d1 = dist_point_to_segment(u, v, *chk_a, *chk_b)
+                    d2 = dist_point_to_segment(u, v, *chk_b, *chk_c)
+                    if min(d1, d2) <= (thickness * 0.5):
+                        cov_check += 1.0
+
+            ss = float(len(samples))
+            if cov_bg > 0.0:
+                dst = over(dst, (lin_bg[0], lin_bg[1], lin_bg[2], lin_bg[3] * (cov_bg / ss)))
+            if cov_house > 0.0:
+                dst = over(dst, (lin_white[0], lin_white[1], lin_white[2], lin_white[3] * (cov_house / ss)))
+            if cov_check > 0.0:
+                dst = over(dst, (lin_green[0], lin_green[1], lin_green[2], lin_green[3] * (cov_check / ss)))
+
+            r = lin_to_srgb(dst[0])
+            g = lin_to_srgb(dst[1])
+            b = lin_to_srgb(dst[2])
+            a = max(0, min(255, int(round(dst[3] * 255.0))))
+
+            out[idx + 0] = r
+            out[idx + 1] = g
+            out[idx + 2] = b
+            out[idx + 3] = a
+            idx += 4
+
+    return png_encode(size, size, bytes(out))
+
+
+def png_chunk(typ: bytes, data: bytes) -> bytes:
+    return struct.pack(
+        ">I", len(data)
+    ) + typ + data + struct.pack(
+        ">I", (zlib.crc32(typ + data) & 0xFFFFFFFF)
+    )
+
+
+def png_encode(width: int, height: int, rgba: bytes) -> bytes:
+    # Build raw scanlines with filter 0
+    stride = width * 4
+    raw = bytearray()
+    for y in range(height):
+        raw.append(0)  # filter type 0
+        start = y * stride
+        raw.extend(rgba[start : start + stride])
+    comp = zlib.compress(bytes(raw), level=9)
+
+    sig = b"\x89PNG\r\n\x1a\n"
+    ihdr = struct.pack(
+        ">IIBBBBB",
+        width,
+        height,
+        8,  # bit depth
+        6,  # color type RGBA
+        0,  # compression
+        0,  # filter
+        0,  # interlace
+    )
+    out = bytearray()
+    out.extend(sig)
+    out.extend(png_chunk(b"IHDR", ihdr))
+    out.extend(png_chunk(b"IDAT", comp))
+    out.extend(png_chunk(b"IEND", b""))
+    return bytes(out)
+
+
+def main():
+    if len(sys.argv) < 3:
+        print(
+            "Usage: python3 scripts/render_icon.py <out_dir> <sizes...>",
+            file=sys.stderr,
+        )
+        sys.exit(2)
+    out_dir = sys.argv[1]
+    sizes = [int(s) for s in sys.argv[2:]]
+    os.makedirs(out_dir, exist_ok=True)
+    for s in sizes:
+        data = render_icon(s)
+        path = os.path.join(out_dir, f"{s}.png")
+        with open(path, "wb") as f:
+            f.write(data)
+        print(f"wrote {path}")
+
+
+if __name__ == "__main__":
+    main()
+