fix(ci): correct YAML indentation in dogfood-gate eclexiaiser step (startup failure)

dogfood-gate.yml startup-failed (Invalid workflow file: line 261) because the
'python3 -c' heredoc in the eclexiaiser-validate step was written flush-left,
terminating the 'run: |' block scalar. Indent the heredoc body into the block so the
YAML parses. THIS was the actual root cause of the gate's 0-job startup failure (the
earlier validate-action repin in da78219 was unrelated SHA-hygiene).

NOTE: this step uses Python (tomllib), which the estate language policy BANS — it is
inherited from rsr-template-repo's dogfood-gate template. Flagged for an upstream
de-Python fix (the dogfooding gate should follow the estate's own policy).

https://claude.ai/code/session_013wg3Mtq2QFhYi4XVw1Z6z7

Author: claude

.github/workflows/dogfood-gate.yml

@@ -256,28 +256,30 @@ jobs:
 
           echo "has_manifest=true" >> "$GITHUB_OUTPUT"
 
-          # Validate TOML structure using Python 3.11+ tomllib
+          # Validate TOML structure using Python 3.11+ tomllib.
+          # NOTE: the -c body MUST stay indented inside this `run: |` block scalar.
+          # A prior flush-left version was invalid YAML and startup-failed the gate.
           python3 -c "
-import tomllib, sys
-with open('eclexiaiser.toml', 'rb') as f:
-    data = tomllib.load(f)
-project = data.get('project', {})
-if not project.get('name', '').strip():
-    print('ERROR: project.name is required', file=sys.stderr)
-    sys.exit(1)
-functions = data.get('functions', [])
-if not functions:
-    print('ERROR: at least one [[functions]] entry is required', file=sys.stderr)
-    sys.exit(1)
-for fn in functions:
-    if not fn.get('name', '').strip():
-        print('ERROR: function name cannot be empty', file=sys.stderr)
-        sys.exit(1)
-    if not fn.get('source', '').strip():
-        print(f'ERROR: function {fn[\"name\"]} has no source path', file=sys.stderr)
-        sys.exit(1)
-print(f'Valid: {project[\"name\"]} ({len(functions)} function(s))')
-" || {
+          import tomllib, sys
+          with open('eclexiaiser.toml', 'rb') as f:
+              data = tomllib.load(f)
+          project = data.get('project', {})
+          if not project.get('name', '').strip():
+              print('ERROR: project.name is required', file=sys.stderr)
+              sys.exit(1)
+          functions = data.get('functions', [])
+          if not functions:
+              print('ERROR: at least one [[functions]] entry is required', file=sys.stderr)
+              sys.exit(1)
+          for fn in functions:
+              if not fn.get('name', '').strip():
+                  print('ERROR: function name cannot be empty', file=sys.stderr)
+                  sys.exit(1)
+              if not fn.get('source', '').strip():
+                  print(f'ERROR: function {fn[\"name\"]} has no source path', file=sys.stderr)
+                  sys.exit(1)
+          print(f'Valid: {project[\"name\"]} ({len(functions)} function(s))')
+          " || {
             echo "::error file=eclexiaiser.toml::Invalid eclexiaiser.toml — see step output for details"
             exit 1
           }