EXAMPLES:
# List all inclusion links with numbers
iwe inline notes/index --list
# Inline by reference key
iwe inline notes/index --reference "architecture"
# Inline by block number (unambiguous)
iwe inline notes/index --block 1
# Preview changes without writing
iwe inline notes/index --reference "design" --dry-run
# Keep the target document after inlining
iwe inline notes/index --block 2 --keep-target
# Inline as blockquote instead of section
iwe inline notes/index --reference "notes" --as-quote
# Output affected document keys for scripting
iwe inline notes/index --reference "design" -f keys
OUTPUT:
-f markdown (default): progress messages showing inline action.
-f keys: one affected document key per line. Matches `iwe find -f keys`
in shape.