docs: provide more comprehensive k8s config

[aj-emerich]

Part of #5123

[github-actions]

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🔗 https://ks-docs-helm-example-docs.kestra-io.workers.dev
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## 🔦 Lighthouse Benchmark

Tested: http://localhost:8787 on 2026-07-13 11:41 UTC
Compared against main baseline from 2026-07-13

Scores (0–100, higher is better)

Page	Performance	Accessibility	Best Practices	SEO
Home	66 🔻 -10	84	54	92
Pricing	98	92	54	100
Enterprise	97	83	54	100
Cloud	91	88	54	100
About Us	97	91	54	100
Docs Landing	95	88	54	92
Contribute to Kestra (simple docs)	98	88	54	92
Flow (full featured docs)	91	90	54	92
Blog Index	75	91	54	100
Blog Post (sample)	90	88	54	100
VS Page (sample)	98	88	54	100
Plugins Landing	92	81	54	92
Plugin Page (sample)	93	88	54	100
Plugin Debug Page (sample)	95	88	54	100
Plugin Debug Return Page (sample)	93	88	54	100
Blueprints Landing	86	80	54 🔻 -19	92
Blueprint Audit Logs CSV Export	60	92	54	100

Core Web Vitals (lower is better)

Page	LCP	FCP	TBT	CLS	Speed Index
Home	1.35 s	0.66 s	610 ms 🔻	0.000	2.46 s
Pricing	1.03 s	0.56 s	38 ms	0.000	0.69 s
Enterprise	1.25 s	0.58 s	38 ms 🔻	0.003	0.71 s
Cloud	1.98 s	0.48 s	30 ms	0.025	0.79 s
About Us	1.16 s	0.64 s	34 ms	0.000	0.74 s
Docs Landing	1.31 s 🔻	0.54 s	108 ms 🔻	0.000	0.89 s
Contribute to Kestra (simple docs)	1.12 s	0.54 s	57 ms 🔻	0.000	0.77 s
Flow (full featured docs)	1.80 s 🔻	0.65 s	93 ms 🟢	0.000	1.11 s
Blog Index	10.48 s	0.57 s	46 ms 🔻	0.000	0.92 s
Blog Post (sample)	2.11 s 🔻	0.55 s	51 ms 🔻	0.000	0.81 s
VS Page (sample)	1.15 s	0.61 s	35 ms 🔻	0.000 🟢	0.73 s
Plugins Landing	0.89 s	0.53 s	42 ms 🔻	0.000	2.99 s
Plugin Page (sample)	1.05 s	0.52 s	23 ms 🟢	0.051	2.30 s
Plugin Debug Page (sample)	0.93 s	0.54 s	28 ms 🔻	0.001	2.12 s
Plugin Debug Return Page (sample)	1.02 s	0.54 s	37 ms 🟢	0.025	2.48 s
Blueprints Landing	1.79 s	0.99 s	85 ms	0.000	2.26 s
Blueprint Audit Logs CSV Export	0.95 s	0.59 s	306 ms 🔻	0.483	2.35 s

Legend

🟢 improved  ·  🔻 regressed  ·  (blank) no significant change
Score threshold: ±10 pts  ·  Metric threshold: ±30% of baseline