Extends the N2/PUT lock guard introduced earlier to the rest of the
native mutator surface. Same helper, same If: capture before body
consumption, same 423-on-reject shape:
- handle_delete : check source path
- handle_proppatch : check source path
- handle_move : check source AND destination paths
- handle_copy : check destination path only (source isn't
modified by a copy)
The class-2 DAV advertisement in OPTIONS is now honest across the
full surface, not just PUT.
New tests N2c-N2f run while n-locked.txt is still LOCKed (before the
existing N3 UNLOCK). Each asserts 423 without the token and verifies
the operation didn't half-apply: file present after DELETE-423,
source untouched + no destination after MOVE-423, locked destination's
content unchanged after COPY-423.
Positive (with-token) coverage is implicit via the M-series happy-
path tests that exercise each method on unlocked resources — a
regression that hard-rejected every call would fail there too.
Edouard Vanbelle
bacd5806d3