Add configurable label font size; bump to 0.76

- New "Label size (mm)" field controlling the numeric-label font size,
  defaulting to a clean 9 mm (was the inherited Inkscape value 8.89194)
- Pin k8s deployment to image tag 0.76

web/app.py

@@ -8,7 +8,7 @@ from fontTools.pens.svgPathPen import SVGPathPen
 
 app = Flask(__name__)
 
-VERSION = "0.75"
+VERSION = "0.76"
 
 _LOGO_PATH = pathlib.Path(__file__).parent / 'static' / 'logo.png'
 _LOGO_B64 = base64.b64encode(_LOGO_PATH.read_bytes()).decode()
@@ -93,7 +93,7 @@ def _text_to_paths(text, x, y, font_size, anchor='start', fill='#1a1a1a', wrap_t
 
 
 def generate_svg(unit, min_val, max_val, range_label, big_ticks, small_ticks, label_count,
-                 use_paths=True, log_scale=False, custom_labels=None):
+                 use_paths=True, log_scale=False, custom_labels=None, label_size=9):
     if log_scale:
         if min_val <= 0 or max_val <= 0:
             raise ValueError("Logarithmic scale requires min and max values greater than 0.")
@@ -197,10 +197,10 @@ def generate_svg(unit, min_val, max_val, range_label, big_ticks, small_ticks, la
         x = big_xs[idx]
         label = custom_labels[k] if custom_labels else _fmt(big_vals[idx])
         if use_paths:
-            parts.append('    ' + _text_to_paths(label, x, 101.49598, 8.89194, anchor='middle'))
+            parts.append('    ' + _text_to_paths(label, x, 101.49598, label_size, anchor='middle'))
         else:
             parts.append(
-                f'    <text style="font-size:8.89194px;font-family:\'ГОСТ тип А\',monospace;fill:#1a1a1a"'
+                f'    <text style="font-size:{label_size:.5f}px;font-family:\'ГОСТ тип А\',monospace;fill:#1a1a1a"'
                 f' text-anchor="middle" x="{x:.5f}" y="101.49598">{escape(label)}</text>'
             )
 
@@ -226,10 +226,11 @@ def generate():
     log_scale   = request.form.get('scale_type', 'linear') == 'log'
 
     custom_labels = [s.strip() for s in request.form.get('labels', '').split(',') if s.strip()] or None
+    label_size    = max(0.5, min(25.0, float(request.form.get('label_size', 9))))
 
     try:
         svg = generate_svg(unit, min_val, max_val, range_label, big_ticks, small_ticks,
-                           label_count, use_paths, log_scale, custom_labels)
+                           label_count, use_paths, log_scale, custom_labels, label_size)
     except ValueError as err:
         return Response(str(err), status=400, mimetype='text/plain')
     return Response(svg, mimetype='image/svg+xml')