win32-x86_64/tools: add zig-x86_64-windows-0.16.0.zip (+minisig)

Provenance: official zig 0.16.0 windows x86_64 release archive, fetched
2026-07-20 from community mirror https://pkg.hexops.org/zig (per
ziglang.org/download/community-mirrors.txt), minisign-verified against the
zig release public key before adding. Adopted pin for punkshell's
suite_tcl90 buildsuite (shellspy G-096) after the recipe's 0.16 port passed
full build + tcl-test parity; also punk-getzig's install pin.

Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com

win32-x86_64/tools/sha1sums.txt

@@ -4,3 +4,5 @@ d02b2e4321297a0b7347c13a2e54bf866c2d62a5 *zig-x86_64-windows-0.14.1.zip.minisig
 dc858cffe5a852642a2a3af8f1178e1d757ba10a *zig-x86_64-windows-0.15.1.zip.minisig
 d73ce3a9d3c80a46496f327bb616d951adc72138 *zig-x86_64-windows-0.15.2.zip
 5937856d416678bea6a4b0a2fe8f05be0791f35f *zig-x86_64-windows-0.15.2.zip.minisig
+a1825dad94dbc012e62349208331300e92268a20 *zig-x86_64-windows-0.16.0.zip
+d8c0c2f22aee08386b63a8ed1e1fd1822634fd62 *zig-x86_64-windows-0.16.0.zip.minisig

win32-x86_64/tools/zig-x86_64-windows-0.16.0.zip.minisig

@@ -0,0 +1,4 @@
+untrusted comment: signature from minisign secret key
+RUSGOq2NVecA2Xv55PVcuw4LDkx6lBN7nTwUJf9jsfLdlPsQyjS2qH2nNE2pgQBKYVwdSHVGpp+8Pj1GIvPQuYtKoVfGSsglQgA=
+trusted comment: timestamp:1776174585	file:zig-x86_64-windows-0.16.0.zip	hashed
+v3JLOmxXALWF2jwlZjwZv1E9NLsDwmPRB4ysPluN9K3Ed/s1Wo3giqG1WuzreKPcHlcT3PhaT4cRny9SsxcKDw==