Move examples from cog-examples to cog (#3055)
* feat: add examples
* format: go and python
* fix: lint and format refactoring
* fix: code review and update cargo deny
* feat: add secret support to coglet
* fix: review fixes for examples and test-harness
- Document list[Secret] coercion exclusion in coglet input handling
- Fix stale 'predict.py' comments in example cog.yaml files
- Correct hello-train README to use 'cog predict'
- Add trailing newlines to example cog.yaml files
- Only pass --setup-timeout for 'cog predict' (not 'cog train')
- Re-add train_tests for hello-train
* feat: move resnet to experimental
* refactor: split out Secret support; address example review comments
- Remove coglet Secret coercion (moved to dedicated PR #3057)
- Remove hello-replicate example and its test-harness entry (moved to #3057)
- Drop Secret usage from the scalar-types fixture
- Gate managed-weights harness run behind COG_MANAGED_WEIGHTS_READY
- Fix stale predict.py/run.py and max:32/max:4 references in hello-concurrency README
- Fix hello-context README to match the text input
- Fix resnet README to describe GPU + torchvision setup-time weight fetch
- Update resnet-managed-weights README to reference model: instead of image:
* refactor(test-harness): base_dir-first model resolution
- Resolve local models by base_dir (relative to repo root) instead of
requiring 'repo: local'; precedence is base_dir, then repo, then the
default fixtures/models dir.
- Reject 'repo: local' in manifest.Load with a migration message.
- Drop redundant 'repo: local' from all manifest entries; examples use
'base_dir: examples', fixtures use 'base_dir: tools/test-harness/fixtures/models'.
- Add Model.Source() for clearer 'list' output when repo is empty.
- Add tests for resolution, repo:local rejection, and Source().
