Doc infra to master

[Becheler]

Before submitting

• This PR targets the develop branch.
• I searched for an existing PR or issue covering the same change.
• My contribution is licensed under the Boost Software License 1.0.

Type of change

• Bug fix
• New feature or API addition
• Refactor (no behavior change)
• Documentation
• Build, CI, or tooling
• Other (specify below)

Does this PR introduce a breaking change?

• Yes (describe migration impact below)
• No

What this PR does

Cherry picks the commits that fixed the documentation deployment on develop so they apply on master for 1.92.

Motivation

It took me a long time to understand the ways that Boost deploys docs. When I understood that website-v2 boost bundle was bugged for our BGL case, I had to step back to imitate the Boost.Unordered deployment. It took some time and experimentations to make sure the doc infra was correctly wired:

• The documentation on develop is linked by the dashboard : https://www.boost.org/library/develop/graph/
• See here it builds : https://www.boost.org/doc/libs/develop/libs/graph/doc/html/graph/index.html
• So we have confirmation (agreed with Sam) that develop contains the required infra fix (unless somethign very weird happens)

This PR selects those changes by branching off master, cherry picking the relevant commits (git cherry-pick e61f290d 8286c075 cde7dbed c7836caf 1fd3ed4e) and applying them in order to avoid conflicts.

Testing

We will need the Boost.CI to run to verify:

1. It passes green: https://app.circleci.com/pipelines/github/boostorg/boost
2. The dashboard for beta 1.92 is here: https://www.boost.org/library/1.92.0.beta1/graph/
3. Its link to its documentation renders: https://www.boost.org/doc/libs/1_92_0_beta1/doc/antora/graph/index.html/

Checklist

• Existing tests pass (b2 in the test/ directory).
• New behavior is covered by a test, or this is a docs / build / refactor change.
• Documentation was updated if user-facing behavior changed.
• No new compiler warnings on the platforms I built against.

[cppalliance-bot]

An automated preview of the documentation is available at https://544.graph.prtest3.cppalliance.org/libs/graph/doc/html/index.html

If more commits are pushed to the pull request, the docs will rebuild at the same URL.

2026-07-28 10:23:12 UTC

[github-actions]

Compiler-warning counts vs develop (auto-generated).
PR run 30349935866 vs develop run 30257490643 (02817557ed).

Job	Baseline	After	Delta
macos (clang, 14)	4	44	+40
macos (clang, 17)	4	44	+40
macos (clang, 20)	4	44	+40
ubuntu (clang-19, 14)	4	4	0
ubuntu (clang-19, 17)	4	4	0
ubuntu (clang-19, 20)	4	4	0
ubuntu (clang-19, 23)	4	4	0
ubuntu (gcc-14, 14)	10	10	0
ubuntu (gcc-14, 17)	10	10	0
ubuntu (gcc-14, 20)	10	10	0
ubuntu (gcc-14, 23)	10	10	0
windows_msvc_14_3 (msvc-14.3)	971	971	0

[jeremy-murphy]

No it doesn't. 😅

[Becheler]

Oh my !
Apologies, it DOES absolutely target the master branch 🤦🏽