chore: remove legacy generate_commands.py in favor of st-generate-commands (#422)

Delete the per-repo scripts/dev/generate_commands.py and regenerate commands.py using the central st-generate-commands tool from standard-tooling. The 12 formerly hand-written methods are now generated like all others. Documentation updated to reference st-generate-commands.

Co-authored-by: wphillipmoore-claude <255925739+wphillipmoore-claude@users.noreply.github.com>

Author: wphillipmoore

docs/site/docs/architecture.md

@@ -117,8 +117,9 @@ No other runtime dependencies are required.
 
 ## Generated command methods
 
-The 144 command methods in `MQRESTCommandMixin` are generated from
-`MAPPING_DATA["commands"]` by `scripts/dev/generate_commands.py`. Each
+The command methods in `MQRESTCommandMixin` are generated from
+`mapping-data.json` by `st-generate-commands` (from
+[standard-tooling](https://github.com/wphillipmoore/standard-tooling)). Each
 method:
 
 - Accepts `name`, `request_parameters`, `response_parameters`, and

docs/site/docs/development/generation-scripts.md

@@ -16,10 +16,15 @@ namespace was bootstrapped.
 ## Command methods
 
 The MQSC command wrapper methods in `src/pymqrest/commands.py` are
-generated from the command definitions in `MAPPING_DATA`:
+generated from the command definitions in `mapping-data.json` using the
+`st-generate-commands` tool from
+[standard-tooling](https://github.com/wphillipmoore/standard-tooling):
 
 ```bash
-uv run python3 scripts/dev/generate_commands.py
+st-generate-commands --language python \
+    --mapping-data src/pymqrest/mapping-data.json \
+    --target src/pymqrest/commands.py \
+    --mapping-pages-dir docs/site/docs/mappings
 ```
 
 The generated methods live between the `# BEGIN GENERATED MQSC METHODS`
@@ -44,7 +49,10 @@ When the mapping data changes, regenerate all downstream artifacts:
 
 ```bash
 # 1. Regenerate command methods
-uv run python3 scripts/dev/generate_commands.py
+st-generate-commands --language python \
+    --mapping-data src/pymqrest/mapping-data.json \
+    --target src/pymqrest/commands.py \
+    --mapping-pages-dir docs/site/docs/mappings
 
 # 2. Regenerate mapping documentation
 uv run python3 scripts/dev/generate_mapping_docs.py

docs/site/docs/development/namespace-origin.md

@@ -36,7 +36,10 @@ When IBM releases a new MQ version (for example, 9.5):
 4. Regenerate downstream artifacts:
 
    ```bash
-   uv run python3 scripts/dev/generate_commands.py
+   st-generate-commands --language python \
+       --mapping-data src/pymqrest/mapping-data.json \
+       --target src/pymqrest/commands.py \
+       --mapping-pages-dir docs/site/docs/mappings
    uv run python3 scripts/dev/generate_mapping_docs.py
    uv run python3 scripts/dev/validate_local.py
    ```