Brings ccross2/hermes-agent up to NousResearch/hermes-agent@ac80bd61
(v0.9.0 release "the everywhere release").

Merge highlights from upstream:
- Pluggable Context Engine slot (NousResearch#7464)
- Local web dashboard, Termux/Android, iMessage/WeChat platforms
- Fast Mode (/fast) for OpenAI/Anthropic priority queues
- Background process monitoring (watch_patterns, NousResearch#7635)
- Comprehensive security hardening (Twilio signature, SSRF, path
  traversal, git injection, shell injection in sandbox writes)
- Dead code cleanup (1,784 lines across 77 files, NousResearch#9180)
- CANONICAL_PROVIDERS consolidation (NousResearch#9237)
- gateway /stop no longer resets session (NousResearch#9224)

Conflict resolution summary (7 hunks across 3 files):

1-4. cli.py _build_compact_banner — took upstream.
   Upstream added skin-aware colors + version label + tiny_line for
   narrow terminals. ccross2 had added word-wrapping for narrow
   terminals (commit 5b32504). The skin engine integration is
   foundational (affects several other surfaces); the word-wrapping
   improvement can be re-added as a follow-up on top of skin-aware.

5. cli.py _reset_stream_state — kept BOTH.
   ccross2 added _stream_in_code_fence; upstream added
   _deferred_content. Different features in the same reset hook,
   both needed.

6. tools/transcription_tools.py get_stt_model_from_config — took ccross2.
   ccross2 added provider-aware model resolution (local/groq/openai
   with per-provider model overrides). Upstream restructured but
   didn't provide an equivalent; the function coexists with upstream's
   _load_stt_config() which returns the raw dict.

7. tests/tools/test_transcription_tools.py — took ccross2.
   Tests for the provider-aware function we kept in (6).

Post-merge state: 5 local ccross2 commits preserved on top of
upstream 0.9. Backup of pre-merge state at
ccross2/cc-fusion-09-rebase-backup (Claude Code's rebase attempt
with 4 of the 5 patches, before this proper merge).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…e of truth (NousResearch#9237)

Three separate hardcoded provider lists (/model, /provider, hermes model)
diverged over time, causing providers to be missing from some commands.

- Create CANONICAL_PROVIDERS in hermes_cli/models.py as the single source
  of truth for all provider identity, labels, and TUI ordering
- Derive _PROVIDER_LABELS and list_available_providers() from canonical list
- Add step 2b in list_authenticated_providers() to cross-check canonical
  list — catches providers with credentials that weren't found via
  PROVIDER_TO_MODELS_DEV or HERMES_OVERLAYS mappings
- Derive hermes model TUI provider menus from canonical list
- Add deepseek and xai as first-class providers (were missing from TUI)
- Add grok/x-ai/x.ai aliases for xai provider

Fixes: /model command not showing all providers that hermes model shows

…e of truth (NousResearch#9237)

Three separate hardcoded provider lists (/model, /provider, hermes model)
diverged over time, causing providers to be missing from some commands.

- Create CANONICAL_PROVIDERS in hermes_cli/models.py as the single source
  of truth for all provider identity, labels, and TUI ordering
- Derive _PROVIDER_LABELS and list_available_providers() from canonical list
- Add step 2b in list_authenticated_providers() to cross-check canonical
  list — catches providers with credentials that weren't found via
  PROVIDER_TO_MODELS_DEV or HERMES_OVERLAYS mappings
- Derive hermes model TUI provider menus from canonical list
- Add deepseek and xai as first-class providers (were missing from TUI)
- Add grok/x-ai/x.ai aliases for xai provider

Fixes: /model command not showing all providers that hermes model shows

…e of truth (NousResearch#9237)

Three separate hardcoded provider lists (/model, /provider, hermes model)
diverged over time, causing providers to be missing from some commands.

- Create CANONICAL_PROVIDERS in hermes_cli/models.py as the single source
  of truth for all provider identity, labels, and TUI ordering
- Derive _PROVIDER_LABELS and list_available_providers() from canonical list
- Add step 2b in list_authenticated_providers() to cross-check canonical
  list — catches providers with credentials that weren't found via
  PROVIDER_TO_MODELS_DEV or HERMES_OVERLAYS mappings
- Derive hermes model TUI provider menus from canonical list
- Add deepseek and xai as first-class providers (were missing from TUI)
- Add grok/x-ai/x.ai aliases for xai provider

Fixes: /model command not showing all providers that hermes model shows

…e of truth (NousResearch#9237)

Three separate hardcoded provider lists (/model, /provider, hermes model)
diverged over time, causing providers to be missing from some commands.

- Create CANONICAL_PROVIDERS in hermes_cli/models.py as the single source
  of truth for all provider identity, labels, and TUI ordering
- Derive _PROVIDER_LABELS and list_available_providers() from canonical list
- Add step 2b in list_authenticated_providers() to cross-check canonical
  list — catches providers with credentials that weren't found via
  PROVIDER_TO_MODELS_DEV or HERMES_OVERLAYS mappings
- Derive hermes model TUI provider menus from canonical list
- Add deepseek and xai as first-class providers (were missing from TUI)
- Add grok/x-ai/x.ai aliases for xai provider

Fixes: /model command not showing all providers that hermes model shows

…e of truth (NousResearch#9237)

Three separate hardcoded provider lists (/model, /provider, hermes model)
diverged over time, causing providers to be missing from some commands.

- Create CANONICAL_PROVIDERS in hermes_cli/models.py as the single source
  of truth for all provider identity, labels, and TUI ordering
- Derive _PROVIDER_LABELS and list_available_providers() from canonical list
- Add step 2b in list_authenticated_providers() to cross-check canonical
  list — catches providers with credentials that weren't found via
  PROVIDER_TO_MODELS_DEV or HERMES_OVERLAYS mappings
- Derive hermes model TUI provider menus from canonical list
- Add deepseek and xai as first-class providers (were missing from TUI)
- Add grok/x-ai/x.ai aliases for xai provider

Fixes: /model command not showing all providers that hermes model shows