fix(inspector): pass text through unknown nodes instead of refusing them (#381) (#383)

* fix(inspector): pass text through unknown nodes instead of refusing them (#381)

The inspector refused any node class missing from the semantics table, so a
PromptManagerPair behind an rgthree Any Switch showed "Prompt uses a node the
inspector does not support". The inspection resolver (Python and browser) now
reads through unknown nodes: a text input is the text, positive/negative route
by output slot, a conditioning input is followed alone, otherwise every linked
input except core type inputs (pass_through.skip_inputs). PromptManager nodes
are authoritative; several different texts become one candidate each
("Several prompts reach the sampler"). A seeded text node with no conditioning
input is generated at run time, and a recorded PromptManager execution is not
checked against text that passed through an unknown node.

INSPECTION_RESOLVER_VERSION goes to 2; ingestion keeps the default profile.
A legacy parity gate records every committed graph whose inspection positive
matches the legacy parser's; no graph may leave it.

* fix(inspector): keep recorded pair text, string-only seed rule, role inputs and unique candidates (#381)

Review of the pass-through: a walk through an unknown node never overrides a
PromptManagerPair's execution record (any outcome but work-limit is
unverifiable while the record is checked); the run-time seed rule reads only
string outputs; a node with positive/negative inputs follows only the role of
the requested slot, nothing when it is unlinked; one text offered twice is one
candidate.

* fix(inspector): anchor on the saver that wrote the file and resolve stages on shared links (#381)

An inspected file's name now anchors the inspection on the one saver whose
filename_prefix (literal or traced) makes the file's stem <prefix>_<digits>[_];
the samplers in that saver's image ancestry are the candidates. No match,
several matches or an unreadable walk anchor nothing, so the file stays
"several possible prompts". In a latent walk, an earlier sampler reading the
same conditioning links as the later one is the same prompt, not an
unattributed stage. Python and the browser resolver behave the same; the
legacy parity gate states each graph that differs from legacy on purpose.

* fix(inspector): skip only plain first stages on shared links; an unfinished prefix scan anchors nothing (#381)

Review of the saver anchor: a same-links earlier stage is skipped only when it
is not a detailer, sets no prompt override and continues no other sampler, so
an earlier prompt or override behind it is never hidden. A work limit while
tracing a saver prefix ends the match scan without an anchor instead of
counting that saver as no match.

* test(inspector): cover every plain-first-stage outcome on both resolvers (#381)

The frontend coverage gate found local-resolver-stages.mjs branches at 92.44%
(< 93). Each way an earlier stage stops being a plain first stage (no latent,
literal, missing or cyclic latent, a sampler-shaped node, a detailer) is now a
resolver test and an anchor-first-stage-* parity vector.

py/api/inspection_service.py

@@ -129,8 +129,9 @@ def inspect_current_file(
         profile = (
             PREVIEW_INSPECTION_PROFILE if _in_host_temp(path) else INSPECTION_PROFILE
         )
+        # The file name anchors on the saver that wrote it (#381).
         evidence = inspect_prompt_evidence(
-            inspection.metadata, role_saved, profile=profile
+            inspection.metadata, role_saved, profile=profile, file_name=path.name
         )
     return {
         "file": {