Fix 404s and add redirects

[sumitshinde-84]

Description

This PR fixes 404s flagged by SEO agency

Related Issue(s)

Checklist

• I have read the contribution guidelines
• I have considered the performance impact of these changes
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
• For blog PRs, an Art Request has been created (instructions)

[Yndira-E]

I'm approving, but also wondering, is the handbook important for SEO?

[netlify]

✅ Deploy Preview for flowforge-website ready!

Name	Link
🔨 Latest commit	64606a6
🔍 Latest deploy log	https://app.netlify.com/projects/flowforge-website/deploys/6a7d847c5ffc280008f7abd0
😎 Deploy Preview	https://deploy-preview-5586--flowforge-website.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 76 (🟢 up 10 from production) Accessibility: 96 (no change from production) Best Practices: 100 (no change from production) SEO: 85 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[sumitshinde-84]

@Yndira-E It’s not about the handbook; it’s about how many pages on the website are returning 404 errors, because that affects SEO

[netlify]

✅ Deploy Preview for flowforge-website ready!

Name	Link
🔨 Latest commit	6742d8d
🔍 Latest deploy log	https://app.netlify.com/projects/flowforge-website/deploys/6a7d84931904c50008cbd92f
😎 Deploy Preview	https://deploy-preview-5586--flowforge-website.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 67 (🟢 up 1 from production) Accessibility: 96 (no change from production) Best Practices: 100 (no change from production) SEO: 85 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[netlify]

✅ Deploy Preview for flowforge-website ready!

Name	Link
🔨 Latest commit	ee87e92
🔍 Latest deploy log	https://app.netlify.com/projects/flowforge-website/deploys/6a7d8c5935711c0008008d2b
😎 Deploy Preview	https://deploy-preview-5586--flowforge-website.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 62 (🔴 down 4 from production) Accessibility: 96 (no change from production) Best Practices: 100 (no change from production) SEO: 85 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify project configuration.