fix(generate): skip local model validation when default_remote is set (#4)

'tsr generate -m <model> ...' without an explicit -r/--remote flag was
running _validate_model_available() against the local [comfyui] url
even when config.toml had default_remote pointing at a different host.
On a typical operator setup (default_remote = 'runpod', local comfyui
url stale or empty) this fails with 'Model X not available on ComfyUI
host (looked in checkpoints/ — 2 entries)' even though the model
exists on the remote and would be reachable for the actual dispatch
a few hundred lines later.

Root cause: two validation gates used the raw 'remote' parameter
(CLI flag only) instead of the resolved remote URL:
  - generate(): pre-fanout validation for --parallel-queue path
  - _run_generation(): per-call validation

Both now use do_resolve_remote(remote), which returns the resolved
URL when default_remote is set even if -r was omitted. The server-
side validator on the remote tensors API still catches missing
models on the remote host — matches the intent already documented
in the comment block.

Co-authored-by: marauder-actual <marauder@saiden.dev>

tensors/cli.py

@@ -1080,7 +1080,16 @@ def generate(  # noqa: PLR0915
     # which also skips the validation/resolution step in that path. Doing it
     # here means each task receives a canonical filename and ComfyUI's strict
     # loaders accept the request first try.
-    if model and not remote:
+    #
+    # Skip validation entirely when a remote dispatch will happen — either an
+    # explicit -r/--remote flag or default_remote from config. The server-side
+    # validator on the remote tensors API will catch missing models there.
+    # Without this, a config with `default_remote = "runpod"` would still hit
+    # the local ComfyUI for the availability check and fail on models that
+    # only exist on the remote host.
+    from tensors.config import resolve_remote as do_resolve_remote  # noqa: PLC0415
+
+    if model and not do_resolve_remote(remote):
         # Detect family for the right loader bucket (checkpoints vs diffusion_models).
         # Mirrors the lookup _run_generation does on entry.
         from tensors.db import Database  # noqa: PLC0415
@@ -1371,6 +1380,8 @@ def _run_generation(  # noqa: PLR0915
     """
     import random as rng  # noqa: PLC0415
 
+    from tensors.config import resolve_remote as do_resolve_remote  # noqa: PLC0415
+
     # ---- Detect model family and enhance prompt/negative ----
     family_defaults: dict[str, Any] = {}
     model_family: str | None = None
@@ -1400,7 +1411,10 @@ def _run_generation(  # noqa: PLR0915
     # available remotely ("v11Softcore"), and offers a fuzzy "did you mean" hint
     # instead of forwarding the request to ComfyUI for a generic 400 rejection.
     # Skipped in --json mode and for remote dispatches (server already validates).
-    if model and not json_output and not remote:
+    # "Remote dispatch" includes both -r/--remote and default_remote in config —
+    # otherwise users with default_remote set hit local ComfyUI for a check that
+    # should be deferred to the remote server.
+    if model and not json_output and not do_resolve_remote(remote):
         # Returns possibly-rewritten names so bare inputs like `-m lust_v10`
         # silently resolve to the canonical `lust_v10.safetensors` filename
         # before being forwarded to ComfyUI's strict CLIPLoader / UNETLoader.
@@ -1490,7 +1504,6 @@ def _run_generation(  # noqa: PLR0915
 
     # ---- Resolve preset defaults for None params (both remote and local need these) ----
     from tensors.config import resolve_orientation  # noqa: PLC0415
-    from tensors.config import resolve_remote as do_resolve_remote  # noqa: PLC0415
 
     # Use already-detected family_defaults from DB lookup above (not filename guessing)
     if family_defaults: