chore(license): an SPDX header on every source file that had none (LicenseRef-Starship-1.0) [skip ci]

The header scan (Captain Bob, 2026-11-10): 788 source files -- 351 with the
SL-1.0 header, 12 with the old name (docs/working/experiments, kept by
ruling), 31 under someone else's licence (tools/kconfig, Linux's, GPL-2.0:
kept), and 394 with none. Ruled: the SPDX form; capsules (.4th, .f18) and
proofs (.thy) left for a ruling of their own (mkcapsule's 64x16 block format,
content-addressed capsules).

253 files now begin
    SPDX-License-Identifier: LicenseRef-Starship-1.0
    Copyright (c) 2023-2026 Robert A. James
as a /* */ block (C, headers, assembly, linker scripts) or # lines (scripts,
Makefiles, Kconfig; below a shebang or a coding line); tools/mkcapsule.c,
which had the copyright line, gets the SPDX line only.

Not touched: docs/working/ (archive and old campaign material, as the
ruling kept the experiments); v4/system/post_cases.c (generated by
v4/tools/mkpost.py, "do not edit" -- the generator has the header).

Comments only: the kernel builds on amd64, aarch64, riscv64; make -C v4
test-32: 39 programs, 0 failures; every changed script parses.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2

kernel/src/arch/aarch64/boot.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * boot.S (aarch64) - Entry stub and linker-script symbol substitutes.
  *

kernel/src/arch/aarch64/isr.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * isr.S (aarch64) - Exception vector table stub.
  *

kernel/src/arch/aarch64/native_rpi5_entry.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * native_rpi5_entry.S (aarch64) - Raspberry Pi 5 native (non-UEFI) entry
  * stub (FABRIC-3.md §IV.3 item 1, 2026-09-04).

kernel/src/arch/aarch64/switch.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * switch.S (aarch64) - Cooperative VM context switch primitive.
  *

kernel/src/arch/amd64/boot.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * boot.S (amd64) - Placeholder entry for future low-level bring-up.
  * The UEFI loader currently calls efi_main() directly; this stub exists

kernel/src/arch/amd64/isr.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * isr.S - Interrupt/exception stubs for amd64
  *

kernel/src/arch/amd64/kernel_entry.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * kernel_entry.S — kernel stack setup and entry trampoline (amd64)
  *

kernel/src/arch/amd64/switch.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * switch.S (amd64) - Cooperative VM context switch primitive.
  *

kernel/src/arch/riscv64/boot.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * boot.S (riscv64) - Entry stub and linker-script symbol substitutes.
  *

kernel/src/arch/riscv64/isr.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * isr.S (riscv64) - Trap vector installation.
  * Routes all S-mode exceptions to a common C handler.

kernel/src/arch/riscv64/kernel_entry.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * kernel_entry.S — kernel stack setup and entry trampoline (riscv64)
  *

kernel/src/arch/riscv64/switch.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * switch.S (riscv64) - Cooperative VM context switch primitive.
  *

kernel/src/boot/cmdline.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * cmdline.c — kernel boot command-line parser
  *

kernel/src/boot/reloc.S

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /**
  * reloc.S - Minimal .reloc section for UEFI PE32+ loader
  *

kernel/src/capsule/capsule_blocks.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* capsule_blocks.c -- the block format of a .4th capsule payload.
  * See capsule_blocks.h.  Nothing here uses the C library or a VM.
  */

kernel/src/capsule/capsule_sig.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* capsule_sig.c -- see capsule_sig.h. */
 #include "starkernel/capsule_sig.h"
 #include "starkernel/x509_ed25519.h"

kernel/src/crypto/ed25519.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* ed25519.c -- see ed25519.h. Twisted Edwards curve point arithmetic
  * (projective X:Y:Z coordinates, unified addition law -- correctness
  * over speed, this is a verify-only, non-hot-path library) plus the

kernel/src/crypto/fe25519.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* fe25519.c -- see fe25519.h for the representation and why. */
 #include "starkernel/fe25519.h"
 #include <string.h>

kernel/src/crypto/scalar25519.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* scalar25519.c -- see scalar25519.h. */
 #include "starkernel/scalar25519.h"
 #include <string.h>

kernel/src/crypto/sha512.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* sha512.c -- FIPS 180-4 SHA-512, freestanding C99, 64-bit words only. */
 #include "starkernel/sha512.h"
 #include <string.h>

kernel/src/crypto/x509_ed25519.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* x509_ed25519.c -- see x509_ed25519.h. */
 #include "starkernel/x509_ed25519.h"
 #include "starkernel/ed25519.h"

kernel/src/gpt.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* gpt.c -- the GPT reader, and a block device of one partition.
  *
  * GPT for boot media and installed disks (Captain Bob, 2026-10-26;

kernel/src/hal/kbd_input.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* kbd_input.c -- one byte of console input, from the serial line or a
  * keyboard: the keyboard bridge, moved here from kernel/src/repl.c on
  * 2026-10-26 unchanged in behaviour, so that v3's console and the v4 boot's

kernel/src/pci/pci.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * pci.c — Generic PCI/PCIe subsystem for StarKernel
  *

kernel/src/rng/rng.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
   StarKernel — Unified entropy layer (rng_get_bytes)
 

kernel/src/usb/blkio_usb.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * blkio_usb.c — USB Mass Storage (Bulk-Only Transport) blkio_dev backend,
  * see blkio_usb.h. Milestone 2h.

kernel/src/usb/xhci.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /*
  * xhci.c — xHCI USB host controller driver for StarKernel: PCI discovery
  * (Milestone 2b), controller bring-up (2c), polled Event Ring servicing

kernel/src/v4/sk_v4.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* sk_v4.c -- StarForth v4 on bare metal: one host node at a prompt.
  *
  * The node is the golden model of the F18-derived engine (v4/src).  It comes

kernel/src/v4/sk_v4_grow.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* sk_v4_grow.c -- Artemis grows to fill the stick at its first boot
  * (docs/v4.0.0/STICK.md 5a; plan 2026-10-29-stick-5, Task 2).
  *

kernel/src/v4/sk_v4_identity.c

@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: LicenseRef-Starship-1.0
+ * Copyright (c) 2023-2026 Robert A. James
+ */
 /* sk_v4_identity.c -- the identity gate for the v4 boot: no identity drive,
  * headless; Zuse's minted thumbdrive, a console.
  * docs/v4.0.0/plans/2026-10-26-engine-step4-identity-gate.md, ENGINE.md 2.