Add a 401 HTML page

[jviotti]

Signed-off-by: Juan Cruz Viotti jv@jviotti.com

[cubic-dev-ai]

5 issues found across 50 files

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[augmentcode]

🤖 Augment PR Summary

Summary: This PR adds a dedicated HTML 401 Unauthorized page for browser-facing navigation when an HTML request is denied by authentication.

Changes:

• Updates the default router action to serve an index-time 401 HTML artifact instead of returning the JSON Problem Details envelope when Accept: text/html is negotiated and access is denied.
• Adds a new web build generator (GENERATE_WEB_UNAUTHORIZED) that renders the unauthorized page into 401.metapack.
• Extends RouterAction::artifact_serve with an optional flag to emit a WWW-Authenticate: Bearer realm="registry" challenge for the HTML 401 response.
• Registers the new build handler and index rule so the 401 page is produced in full builds (root-only), mirroring the existing 404 page behavior.
• Updates enterprise auth Hurl E2E scenarios to expect text/html; charset=utf-8 and validate key page text/headers for denied HTML requests.
• Updates CLI index snapshot/manifest expectations to include ./explorer/%/401.metapack.

Technical Notes: The HTML 401 page is served with no-store cache discipline, browser security headers (e.g. Referrer-Policy, X-Frame-Options), and the same Bearer challenge used by the JSON 401 envelope.

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[augmentcode]

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[cubic-dev-ai]

1 issue found across 21 files (changes from recent commits).

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[github-actions]

Benchmark Index (community)

Details

Benchmark suite	Current: 1c8e8b6	Previous: df873c2	Ratio
Add one schema (0 existing)	391 ms	393 ms	0.99
Add one schema (100 existing)	28 ms	29 ms	0.97
Add one schema (1000 existing)	81 ms	82 ms	0.99
Add one schema (10000 existing)	640 ms	655 ms	0.98
Update one schema (1 existing)	21 ms	21 ms	1
Update one schema (101 existing)	28 ms	28 ms	1
Update one schema (1001 existing)	80 ms	86 ms	0.93
Update one schema (10001 existing)	653 ms	702 ms	0.93
Cached rebuild (1 existing)	6 ms	6 ms	1
Cached rebuild (101 existing)	8 ms	8 ms	1
Cached rebuild (1001 existing)	28 ms	28 ms	1
Cached rebuild (10001 existing)	238 ms	250 ms	0.95
Index 100 schemas	611 ms	675 ms	0.91
Index 1000 schemas	1528 ms	1521 ms	1.00
Index 10000 schemas	13474 ms	13701 ms	0.98
Index 10000 schemas (custom meta-schema)	16148 ms	16668 ms	0.97
Index 10000 schemas ($ref fan-out)	16593 ms	16929 ms	0.98

This comment was automatically generated by workflow using github-action-benchmark.

[github-actions]

Benchmark Index (enterprise)

Details

Benchmark suite	Current: 1c8e8b6	Previous: df873c2	Ratio
Add one schema (0 existing)	380 ms	376 ms	1.01
Add one schema (100 existing)	31 ms	33 ms	0.94
Add one schema (1000 existing)	82 ms	89 ms	0.92
Add one schema (10000 existing)	729 ms	691 ms	1.05
Update one schema (1 existing)	24 ms	25 ms	0.96
Update one schema (101 existing)	31 ms	33 ms	0.94
Update one schema (1001 existing)	84 ms	89 ms	0.94
Update one schema (10001 existing)	734 ms	702 ms	1.05
Cached rebuild (1 existing)	8 ms	8 ms	1
Cached rebuild (101 existing)	10 ms	11 ms	0.91
Cached rebuild (1001 existing)	30 ms	34 ms	0.88
Cached rebuild (10001 existing)	254 ms	279 ms	0.91
Index 100 schemas	639 ms	471 ms	1.36
Index 1000 schemas	1606 ms	1553 ms	1.03
Index 10000 schemas	13706 ms	13541 ms	1.01
Index 10000 schemas (custom meta-schema)	16653 ms	16337 ms	1.02
Index 10000 schemas ($ref fan-out)	16632 ms	16330 ms	1.02

This comment was automatically generated by workflow using github-action-benchmark.