update docs: eDP controller confirmed, drop charger from BOM, graduate to bring-up phase

docs/parts-list.md

@@ -7,13 +7,13 @@
 | Item | Specification | Source | Est. Cost | Status |
 |------|--------------|--------|-----------|--------|
 | SBC | Orange Pi 3B 8GB + 256GB eMMC | Amazon | $189 | **Purchased** |
-| Display controller | 30-pin eDP to HDMI | Amazon/eBay | $24 | Ordered — may be optional (OPi3B has native eDP) |
+| Display controller | 30-pin eDP to HDMI | Amazon/eBay | $24 | Ordered — arriving in ~2 weeks |
 
 ### Salvaged from K501U
 
 | Item | Status | Notes |
 |------|--------|-------|
-| Display (Innolux N156HGE-EAB) | Available | May connect via native eDP on OPi3B |
+| Display (Innolux N156HGE-EAB) | Available | Connects via eDP-to-HDMI controller board |
 | Hinge mechanism | Available | Intact |
 | WiFi antenna | Available | OPi3B has built-in WiFi — antenna may still be useful for signal |
 | Webcam | Available | In bezel |
@@ -34,7 +34,6 @@
 | IP5389 power board | USB-C PD, 3S, bare PCB | AliExpress | $8-15 | Preliminary selection |
 | 18650 cells | 3S or 3S2P, quality brand | User's pick | $12-24 | To purchase |
 | 5A blade fuse + holder | Automotive | Amazon | $2 | To purchase |
-| USB-C wall charger | 5V/3A, for testing | Amazon | $8-12 | To purchase |
 
 ### Networking
 
@@ -78,7 +77,7 @@
 | Power system (board+cells+fuse+charger) | ~$44 |
 | HDMI switch | ~$10 |
 | Panel-mount cables + SD reader | ~$23 |
-| **Remaining** | **~$111** |
+| **Remaining** | **~$100** |
 
 ### Total Project
 
@@ -86,7 +85,7 @@
 |---|----|
 | Spent | $213 |
 | Remaining | ~$111 |
-| **Estimated total** | **~$324** |
+| **Estimated total** | **~$313** |
 
 ---
 
@@ -103,7 +102,6 @@
 - USB enclosure or flash drive
 - IP5389 power board + 18650 cells
 - 5A fuse + holder
-- USB-C wall charger (5V/3A)
 - Mechanical HDMI A/B switch
 - Panel-mount cables (USB-A, USB-C, HDMI, Ethernet, audio)
 - Panel-mount SD card reader