fix(switch): match encoded Azure project paths

[jonasherfort]

Fixes #3203.

Azure DevOps returns decoded project names from az repos pr show, while Git remotes store project path segments URL-encoded. Canonicalize Azure path segments before comparing remotes and constructing Azure URLs, so wt switch pr:N works for projects like project with spaces.

Added an integration regression covering an encoded Azure project path with a decoded Azure API project name.

[Copilot]

Pull request overview

This PR fixes Azure DevOps remote matching for wt switch pr:N when Azure returns a decoded project name (e.g. project with spaces) but the git remote URL stores the project path segment URL-encoded (e.g. project%20with%20spaces). It does this by canonicalizing URL path segments (decode → re-encode) before comparing and when constructing Azure URLs, and adds an integration regression test.

Changes:

• Add URL path segment canonicalization helpers (canonical_url_path_segment, url_path_segments_eq) to normalize encoded vs decoded Azure path segments.
• Use canonicalized segment comparison when selecting an Azure remote (project + repo) from configured git remotes.
• Canonicalize Azure URL path segments when constructing fork/PR/build web URLs, and add an integration snapshot covering a space-containing Azure project name.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/git/url.rs	Adds canonicalization + equality helpers for URL path segments (decode then encode) to normalize encoded/decoded forms.
src/git/repository/remotes.rs	Uses canonicalized segment comparison when matching Azure project/repo against configured remotes.
src/git/remote_ref/azure.rs	Canonicalizes organization/project/repo segments when constructing Azure remote + web URLs so URLs are consistently encoded.
src/git/mod.rs	Re-exports the new URL helper functions for use across git modules.
tests/integration_tests/switch.rs	Adds an integration test for wt switch pr:101 where the remote has an encoded project segment but the Azure API project name is decoded.
tests/snapshots/integration__integration_tests__switch__switch_pr_azure_project_name_with_spaces.snap	Adds the regression snapshot asserting successful switch and the expected (encoded) Azure PR web URL in output.

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[max-sixty]

thanks @jonasherfort