openinstall: re-vendor from sh1pt deploy-ssh 0.1.2 (www -> apex, reload nginx)

[ralyodio]

Re-vendors templates/openinstall/install.sh from sh1pt's canonical copy (deploy-ssh 0.1.2, profullstack/sh1pt#1035). It's now byte-identical, so openinstall init stops handing out two bugs:

• www served the app twice: www.<domain> got a full second copy of the site. Now every name after the first in DOMAINS returns 301 to https://<first>.
• nginx never reloaded: a changed site config was written but nginx kept the old one, because put_root_file ran in a pipeline subshell.

Bumps to 0.68.1. The openinstall tests pass (6/6).

🤖 Generated with Claude Code

[github-actions]

ThreatCrush Security Scan

33 finding(s)

HIGH/CRITICAL: 7 | MEDIUM: 12 | LOW: 14

Severity	Rule	Location
HIGH	py-ssrf-outbound-request	dev2/dev2-site:151
HIGH	py-ssrf-outbound-request	dev2/dev2-site:1060
HIGH	py-ssrf-outbound-request	dev2/dev2-site:1775
HIGH	sh-remote-script-execution	root-ubuntu.sh:3250
HIGH	sh-remote-script-execution	root-ubuntu.sh:3251
HIGH	sh-remote-script-execution	root-ubuntu.sh:5146
HIGH	sh-remote-script-execution	root-ubuntu.sh:5150
MEDIUM	sql-template-interpolation	dev2/dev2-site:1286
MEDIUM	sql-template-interpolation	dev2/dev2-site:1363
MEDIUM	sh-remote-script-execution	root-ubuntu.sh:5354
MEDIUM	redos-nested-quantifier	src/domain-free.ts:56
MEDIUM	redos-nested-quantifier	src/emoji.ts:167
MEDIUM	redos-nested-quantifier	src/icon.ts:166
MEDIUM	redos-nested-quantifier	src/mail.ts:1047
MEDIUM	sql-template-interpolation	src/users-dump.ts:487
MEDIUM	sql-string-concatenation	src/users-dump.ts:507
MEDIUM	sql-template-interpolation	src/users-dump.ts:540
MEDIUM	sql-string-concatenation	src/users-dump.ts:574
MEDIUM	redos-nested-quantifier	src/wcag.ts:556
LOW	secret-generic-credential	src/credentials.ts:36
LOW	secret-generic-credential	src/credentials.ts:53
LOW	secret-generic-credential	src/credentials.ts:56
LOW	secret-generic-credential	src/credentials.ts:61
LOW	secret-generic-credential	src/user-export.ts:689
LOW	secret-generic-credential	src/user-export.ts:695
LOW	secret-generic-api-key	test/credentials.test.ts:208
LOW	secret-generic-credential	test/mail.test.ts:141
LOW	secret-generic-credential	test/proxy.test.ts:69
LOW	secret-generic-credential	test/proxy.test.ts:85
LOW	secret-generic-credential	test/shorten.test.ts:36
LOW	secret-database-url	test/users-dump.test.ts:108
LOW	secret-database-url	test/users-dump.test.ts:119
LOW	secret-database-url	test/users-dump.test.ts:120

Snippets are redacted; ThreatCrush never prints matched credential material.