* fix(auth): normalize whitespace in auth-config env-var/id references at store time
token_env, client_secret_env, tenant_id, and client_id were VALIDATED on
their .strip()ed form but STORED raw, so an accidentally padded value passed
validation yet silently broke the downstream verbatim os.environ.get(name) /
OAuth-URL lookups — load_auth_config succeeded but resolve_token returned
None and the request quietly downgraded to unauthenticated (401/403) with no
diagnostic.
Normalize these whitespace-insignificant string references with a _norm
helper at store time, mirroring how `hosts` is already normalized
(h.strip().lower()). `token` is unchanged (already stripped at resolve time).
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* test(auth): cover tenant_id/client_id/client_secret_env normalization
Address review: the regression test only covered token_env, but the fix also
normalizes tenant_id, client_id, and client_secret_env. Add a padded
azure-ad entry asserting all three are stored stripped.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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