Refactor: load execution profiles from YAML and split prompt definitions into promptdef repository

internal/profile/testdata/invalid_yaml.yaml

@@ -1,5 +1,3 @@
-id: invalid-yaml
-version: 1.0.0
-templates:
-  - role: system
-    content: [unclosed bracket
+id: invalid_yaml
+endpoint: http://localhost:8000/v1
+model: [broken

internal/profile/testdata/missing_endpoint.yaml

@@ -0,0 +1,2 @@
+id: missing-endpoint
+model: gpt-4o-mini

internal/profile/testdata/missing_id.yaml

@@ -1,11 +1,2 @@
-version: 1.0.0
-description: Missing ID
-inputs:
-  - name: transcript
-    required: true
-templates:
-  - role: system
-    content: Hello
-output_format: text
-validation:
-  validation_mode: none
+endpoint: http://localhost:8000/v1
+model: gpt-4o-mini

internal/profile/testdata/missing_model.yaml

@@ -0,0 +1,2 @@
+id: missing-model
+endpoint: http://localhost:8000/v1

internal/profile/testdata/raw_api_key.yaml

@@ -0,0 +1,4 @@
+id: raw-api-key
+endpoint: http://localhost:8000/v1
+model: gpt-4o-mini
+api_key: super-secret-should-not-be-here

internal/profile/testdata/unknown_field.yaml

@@ -0,0 +1,4 @@
+id: unknown-field
+endpoint: http://localhost:8000/v1
+model: gpt-4o-mini
+foo: bar

internal/profile/testdata/valid_local_profile.yaml

@@ -0,0 +1,7 @@
+id: local-default
+endpoint: http://localhost:8000/v1
+model: gpt-4o-mini
+temperature: 0.2
+max_tokens: 700
+top_p: 1.0
+timeout_seconds: 120

internal/profile/testdata/valid_with_api_key_env.yaml

@@ -0,0 +1,7 @@
+id: local-secure
+endpoint: http://localhost:8000/v1
+model: gpt-4o-mini
+api_key_env: SCRIPTORIUM_API_KEY
+reasoning_effort: medium
+extra_params:
+  provider: local