feat: focus library on custom components only

- Remove all JLCPCB/LCSC related files and documentation
- Clean up README files to focus on custom components not in standard library
- Translate CHANGELOG to English
- Add .gitkeep files to preserve directory structure
- Library now focused on: missing 3D models, custom artwork, personal logos

README.md

@@ -10,8 +10,6 @@ my-kicad-libs/
 │   ├── Custom_Logic/
 │   ├── Custom_Power/
 │   ├── Custom_Connectors/
-│   ├── Standard_Passives/    # Standard R/C/L with LCSC
-│   ├── Standard_ICs/         # CAN, STM32, Standard ICs
 │   ├── Logos_Artwork/
 │   └── ...
 ├── footprints/           # Footprint libraries (.pretty)
@@ -38,21 +36,15 @@ my-kicad-libs/
   - `Logic_TI_74HC.kicad_sym`
   - `Power_LTC_Switching.kicad_sym`
   - `Connectors_JST_XH.kicad_sym`
-  - `Standard_Passives.kicad_sym`
-  - `Standard_ICs.kicad_sym`
+
   - `Logos_Personal.kicad_sym`
 
 ### Individual Symbol Names (within .kicad_sym)
 - **Format**: `[Partnumber]_[Package]_[Variant]`
-- **Format (Standard Passives)**: `[Value]_[Package]_[LCSC]`
-- **Format (Standard ICs)**: `[Partnumber]_[Package]_[LCSC]`
 - **Examples**:
   - `TPS54340_HTSSOP-14_PowerPAD`
   - `STM32F407VGT6_LQFP-100`
   - `USB-C_16Pin_Receptacle`
-  - `100nF_0603_C14663` (Capacitor with LCSC#)
-  - `10k_0603_C25804` (Resistor with LCSC#)
-  - `MCP2515_SOIC-18_C55199` (CAN controller with LCSC#)
   - `Logo_MyCompany_10mm`
 
 ### Footprints (.pretty folders)
@@ -65,38 +57,21 @@ my-kicad-libs/
   - `Logos_Silkscreen.pretty`
   - `Mechanical_Standoffs.pretty`
 
-## 📊 Standard Components with LCSC
-
-### Standard Passives (R/C/L)
-- **Purpose**: Consistent, cost-optimized parts with LCSC numbers
-- **Footprints**: Use standard KiCad footprints (Resistor_SMD, Capacitor_SMD, etc.)
-- **Symbols**: Custom symbols with LCSC part numbers and manufacturer data
-- **Examples**: `100nF_0603_C14663`, `10k_0603_C25804`
-
-### Standard ICs
-- **Purpose**: Common ICs with LCSC numbers for automated assembly
-- **Categories**:
-  - CAN transceivers: `MCP2515_SOIC-18_C55199`
-  - STM32 MCUs: `STM32F103C8T6_LQFP-48_C8734`
-  - Voltage regulators: `AMS1117-3.3_SOT-223_C6186`
-  - Op-amps: `LM358_SOIC-8_C7950`
-- **Footprints**: Use standard KiCad footprints (Package_SO, Package_QFP, etc.)
-
 ## ⚙️ Best Practices
 
-### Standard Component Strategy
+### Component Strategy
 1. **Use KiCad footprints**: Don't reinvent the wheel for standard packages
-2. **LCSC integration**: Add LCSC numbers for cost optimization
-3. **Manufacturer data**: Include MPN and manufacturer in symbols
-4. **BOM automation**: Enable direct JLCPCB assembly integration
+2. **Consistent naming**: Follow established naming conventions
+3. **Documentation**: Include manufacturer data and datasheets
+4. **Quality**: Test all components before adding to library
 
 ### Workflow
 
-#### Adding New Standard Component
+#### Adding New Component
 1. **Check KiCad**: Verify symbol/footprint don't exist in standard libraries
-2. **LCSC lookup**: Find LCSC part number and basic part status
-3. **Create symbol**: With complete manufacturer data and LCSC number
-4. **Link footprint**: Use existing KiCad footprint
+2. **Research**: Find datasheet and manufacturer information
+3. **Create symbol**: With complete manufacturer data
+4. **Link footprint**: Use existing KiCad footprint or create custom
 5. **Test**: Use in test circuit
 6. **Document**: Add to documentation