fix: comprehensive boot hardening — crashes, warnings, sensors, bare-metal PS/2

- firmware-loader: handle missing INIT_NOTIFY gracefully (Option<RawFd>)
- driver-params: suppress ENODEV (19) on missing driver-manager scheme
- compositor: add wl_seat.name + pointer capabilities for Qt6 compat
- greeter: use redox QPA (libqredox.so) instead of broken Qt6 Wayland
- greeter: reduce DRM wait 10s→2s, kded6 offscreen QPA to avoid crash
- thermald: add CPU die temperature via MSR IA32_THERM_STATUS (Linux coretemp)
- pcid: diagnostic MCFG warning with Q35 guidance, address validation
- dhcpd: auto-interface detection (P0-dhcpd-auto-iface.patch wired)
- procmgr: SIGCHLD EPERM→debug (kernel limitation, not a bug)
- ps2d LED: warn→debug on modern hw without real PS/2 controller
- ps2d mouse: 10×1s→3×250ms retry, fast-fail on unknown response
- i2c RON: handle empty response from i2cd when no adapters present
- base recipe: wire 6 new/improved patches
- config: remove INIT_SKIP, enable all 14 previously-suppressed daemons

local/patches/base/P3-ps2d-led-feedback.patch

@@ -25,20 +25,20 @@
 +        if num { led_byte |= 2; }
 +        if caps { led_byte |= 4; }
 +        if let Err(err) = self.keyboard_command_inner(0xED) {
-+            warn!("ps2d: failed to send LED command 0xED: {:?}", err);
++            log::debug!("ps2d: LED command 0xED not supported: {:?}", err);
 +            return;
 +        }
 +        match self.read_timeout(DEFAULT_TIMEOUT) {
 +            Ok(0xFA) => {
 +                if let Err(err) = self.write(led_byte) {
-+                    warn!("ps2d: failed to send LED byte {:02X}: {:?}", led_byte, err);
++                    log::debug!("ps2d: failed to send LED byte {:02X}: {:?}", led_byte, err);
 +                }
 +            }
 +            Ok(val) => {
-+                warn!("ps2d: LED command ACK expected 0xFA, got {:02X}", val);
++                log::debug!("ps2d: LED command ACK expected 0xFA, got {:02X}", val);
 +            }
 +            Err(err) => {
-+                warn!("ps2d: LED command ACK timeout: {:?}", err);
++                log::debug!("ps2d: LED command ACK timeout: {:?}", err);
 +            }
 +        }
 +    }