Merges upstream farion1231/cc-switch up to 99e11e0 (40 commits) to bring
in farion1231#5071 (Codex native Anthropic Messages protocol) and the proxy-layer
commits it depends on. Manual port was infeasible: the proxy files
(forwarder/handlers/codex.rs) diverged by 300-665 lines from upstream's
base, and farion1231#5071's new modules reference upstream-only APIs.

Conflict resolution:
- Files already manually ported (11c/94f/farion1231#5128/profiles): kept ours
  (crates-adapted, tested); took upstream for the 3 new farion1231#5071 modules
  (transform_codex_anthropic / streaming_codex_anthropic /
  codex_responses_sse) and let auto-merge handle the rest of the proxy
  changes.
- i18n: took upstream (has farion1231#5071 keys) + re-added profiles.clearFailed.
- Deduplicated auto-merge artifacts: `mod profile` / `mod profiles`
  declared twice in commands/mod.rs, dao/mod.rs, services/mod.rs.
- Brought missing codex_state_db module (rename-detection miss) and
  declared it in cc-switch-core lib.rs.
- Adapted src-tauri-style `crate::services` ref in config.rs to
  `cc_switch_core::services`; wrapped query_codex_quota call in Ok to
  match the merged signature.
- UsageDashboard: merged budget features (ours) with farion1231#5057 refresh-
  interval persistence (upstream).
- Removed spurious src-tauri/src/commands/{coding_plan,mcp}.rs rename
  duplicates (real files live in crates/).

cargo check -p cc-switch-app passes.