Update PCB fabrication constraints for photoresist process

Author: sivakov512

templates/home-etch-photoresist/README.md

@@ -34,11 +34,11 @@ The template is preconfigured as a 2-layer board with constraints appropriate fo
 
 | Parameter                   | Value   | Notes                                    |
 | --------------------------- | ------- | ---------------------------------------- |
-| Minimum clearance           | 0.2 mm  | Safe for photoresist resolution          |
-| Minimum track width         | 0.3 mm  | Reliable with standard UV exposure       |
+| Minimum clearance           | 0.25 mm | Safe for photoresist resolution          |
+| Minimum track width         | 0.25 mm | Reliable with standard UV exposure       |
 | Minimum connection width    | 0.25 mm | Ensures good electrical connection       |
-| Minimum annular width       | 0.25 mm | Adequate for manual drilling tolerance   |
-| Minimum via diameter        | 0.8 mm  | Suitable for 0.3 mm drill bits          |
+| Minimum annular width       | 0.35 mm | Adequate for manual drilling tolerance   |
+| Minimum via diameter        | 1.0 mm  | Suitable for 0.3 mm drill bits          |
 | Copper to hole clearance    | 0.3 mm  | Accounts for drilling precision          |
 | Copper to edge clearance    | 0.5 mm  | Safe margin for cutting/routing          |
 | Minimum through hole        | 0.3 mm  | Standard drill bit availability          |
@@ -52,9 +52,9 @@ The template is preconfigured as a 2-layer board with constraints appropriate fo
 
 | Property       | Value   |
 | -------------- | ------- |
-| Clearance      | 0.2 mm  |
-| Track Width    | 0.3 mm  |
-| Via Size       | 0.8 mm  |
+| Clearance      | 0.25 mm |
+| Track Width    | 0.25 mm |
+| Via Size       | 1.0 mm  |
 | Via Hole       | 0.3 mm  |
 | DiffPair Width | 0.2 mm  |
 | DiffPair Gap   | 0.25 mm |

templates/home-etch-photoresist/home-etch-photoresist.kicad_pro

@@ -124,7 +124,7 @@
       "rules": {
         "max_error": 0.005,
         "min_clearance": 0.25,
-        "min_connection": 0.2,
+        "min_connection": 0.25,
         "min_copper_edge_clearance": 0.5,
         "min_groove_width": 0.0,
         "min_hole_clearance": 0.3,
@@ -136,9 +136,9 @@
         "min_text_height": 0.8,
         "min_text_thickness": 0.08,
         "min_through_hole_diameter": 0.3,
-        "min_track_width": 0.2,
-        "min_via_annular_width": 0.25,
-        "min_via_diameter": 0.8,
+        "min_track_width": 0.25,
+        "min_via_annular_width": 0.35,
+        "min_via_diameter": 1.0,
         "solder_mask_to_copper_clearance": 0.0,
         "use_height_for_length_calcs": true
       },
@@ -443,7 +443,7 @@
       "no_connect_dangling": "warning",
       "pin_not_connected": "error",
       "pin_not_driven": "error",
-      "pin_to_pin": "warning",
+      "pin_to_pin": "error",
       "power_pin_not_driven": "error",
       "same_local_global_label": "warning",
       "similar_label_and_power": "warning",
@@ -453,6 +453,7 @@
       "single_global_label": "ignore",
       "unannotated": "error",
       "unconnected_wire_endpoint": "warning",
+      "undefined_netclass": "error",
       "unit_value_mismatch": "error",
       "unresolved_variable": "error",
       "wire_dangling": "error"
@@ -481,8 +482,8 @@
         "pcb_color": "rgba(0, 0, 0, 0.000)",
         "priority": 2147483647,
         "schematic_color": "rgba(0, 0, 0, 0.000)",
-        "track_width": 0.2,
-        "via_diameter": 0.8,
+        "track_width": 0.25,
+        "via_diameter": 1.0,
         "via_drill": 0.3,
         "wire_width": 6
       }
@@ -577,12 +578,24 @@
           "label": "Datasheet",
           "name": "Datasheet",
           "show": true
+        },
+        {
+          "group_by": false,
+          "label": "Description",
+          "name": "Description",
+          "show": false
+        },
+        {
+          "group_by": false,
+          "label": "#",
+          "name": "${ITEM_NUMBER}",
+          "show": false
         }
       ],
       "filter_string": "",
       "group_symbols": true,
       "include_excluded_from_bom": true,
-      "name": "Default Editing",
+      "name": "",
       "sort_asc": true,
       "sort_field": "Reference"
     },

templates/home-etch-photoresist/meta/info.html

@@ -89,12 +89,12 @@ <h2>Design Rules → Constraints</h2>
             </tr>
             <tr>
                 <td>Minimum clearance</td>
-                <td>0.2 mm</td>
+                <td>0.25 mm</td>
                 <td>Safe for photoresist resolution</td>
             </tr>
             <tr>
                 <td>Minimum track width</td>
-                <td>0.3 mm</td>
+                <td>0.25 mm</td>
                 <td>Reliable with standard UV exposure</td>
             </tr>
             <tr>
@@ -104,12 +104,12 @@ <h2>Design Rules → Constraints</h2>
             </tr>
             <tr>
                 <td>Minimum annular width</td>
-                <td>0.25 mm</td>
+                <td>0.35 mm</td>
                 <td>Adequate for manual drilling tolerance</td>
             </tr>
             <tr>
                 <td>Minimum via diameter</td>
-                <td>0.8 mm</td>
+                <td>1.0 mm</td>
                 <td>Suitable for 0.3 mm drill bits</td>
             </tr>
             <tr>
@@ -152,15 +152,15 @@ <h2>Net Classes → <code>Default</code></h2>
             </tr>
             <tr>
                 <td>Clearance</td>
-                <td>0.2 mm</td>
+                <td>0.25 mm</td>
             </tr>
             <tr>
                 <td>Track Width</td>
-                <td>0.3 mm</td>
+                <td>0.25 mm</td>
             </tr>
             <tr>
                 <td>Via Size</td>
-                <td>0.8 mm</td>
+                <td>1.0 mm</td>
             </tr>
             <tr>
                 <td>Via Hole</td>