feat: PCA SSH Manager v1.1

Portable SSH client with auto-save sessions.
- Session groups (drag-and-drop between groups)
- 100+ quick commands for Linux and Keenetic routers
- Built-in command suggestion agent
- Dark theme (Catppuccin), PCA branding
- Builds to .exe (Windows) or .app (macOS)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

gen_icon.py

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+"""Generate PCA SSH icon in .ico (Windows) and .icns (macOS) formats."""
+from PIL import Image, ImageDraw, ImageFont
+import struct, os, sys
+
+SIZE = 512
+
+def draw_icon(size=SIZE):
+    img = Image.new("RGBA", (size, size), (0, 0, 0, 0))
+    draw = ImageDraw.Draw(img)
+
+    # Dark rounded-rect background
+    r = size // 6
+    draw.rounded_rectangle([4, 4, size - 4, size - 4], radius=r, fill="#1e1e2e", outline="#3b3b5c", width=3)
+
+    # "PCA" text
+    font_size = size // 4
+    try:
+        font = ImageFont.truetype("arial.ttf", font_size)
+    except OSError:
+        try:
+            font = ImageFont.truetype("/System/Library/Fonts/Helvetica.ttc", font_size)
+        except OSError:
+            font = ImageFont.load_default()
+
+    bbox = draw.textbbox((0, 0), "PCA", font=font)
+    tw, th = bbox[2] - bbox[0], bbox[3] - bbox[1]
+    tx = (size - tw) // 2
+    ty = size // 4 - th // 4
+    draw.text((tx, ty), "PCA", fill="#6c8fff", font=font)
+
+    # Blue dots pattern (like water drops)
+    cx = size // 2
+    cy = int(size * 0.62)
+    dot_r = size // 30
+
+    dot_positions = [
+        (0, 0),
+        (-3 * dot_r, -2 * dot_r),
+        (3 * dot_r, -2 * dot_r),
+        (-1.5 * dot_r, 2 * dot_r),
+        (1.5 * dot_r, 2 * dot_r),
+        (0, 4 * dot_r),
+        (-4.5 * dot_r, 1 * dot_r),
+        (4.5 * dot_r, 1 * dot_r),
+    ]
+
+    for dx, dy in dot_positions:
+        x = cx + dx
+        y = cy + dy
+        draw.ellipse([x - dot_r, y - dot_r, x + dot_r, y + dot_r], fill="#6c8fff")
+
+    # Subtle connecting lines between dots
+    line_color = "#3d5abf"
+    connections = [(0, 1), (0, 2), (1, 3), (2, 4), (3, 5), (4, 5), (1, 6), (2, 7)]
+    abs_positions = [(cx + dx, cy + dy) for dx, dy in dot_positions]
+    for a, b in connections:
+        draw.line([abs_positions[a], abs_positions[b]], fill=line_color, width=max(1, size // 200))
+
+    return img
+
+
+def save_ico(img, path):
+    sizes = [16, 24, 32, 48, 64, 128, 256]
+    icons = []
+    for s in sizes:
+        icons.append(img.resize((s, s), Image.LANCZOS))
+    icons[0].save(path, format="ICO", sizes=[(s, s) for s in sizes], append_images=icons[1:])
+
+
+def save_icns(img, path):
+    # macOS .icns via iconutil
+    import tempfile, subprocess
+    iconset = tempfile.mkdtemp(suffix=".iconset")
+    for size in [16, 32, 64, 128, 256, 512]:
+        resized = img.resize((size, size), Image.LANCZOS)
+        resized.save(os.path.join(iconset, f"icon_{size}x{size}.png"))
+        if size <= 256:
+            resized2x = img.resize((size * 2, size * 2), Image.LANCZOS)
+            resized2x.save(os.path.join(iconset, f"icon_{size}x{size}@2x.png"))
+    subprocess.run(["iconutil", "-c", "icns", iconset, "-o", path], check=True)
+    import shutil
+    shutil.rmtree(iconset)
+
+
+if __name__ == "__main__":
+    out_dir = os.path.dirname(os.path.abspath(__file__))
+    img = draw_icon(512)
+
+    ico_path = os.path.join(out_dir, "pca_ssh.ico")
+    save_ico(img, ico_path)
+    print(f"ICO: {ico_path}")
+
+    if sys.platform == "darwin":
+        icns_path = os.path.join(out_dir, "pca_ssh.icns")
+        save_icns(img, icns_path)
+        print(f"ICNS: {icns_path}")
+
+    png_path = os.path.join(out_dir, "pca_ssh.png")
+    img.save(png_path)
+    print(f"PNG: {png_path}")