A lane whose recorded dir has a space is missing from worktrees --all and the inventory index: worktree_rows hands lane_control_root the dir unquoted, and payload_subfield cuts it at the first space #295

Found by the independent delta review r3 of #289, as its SHOULD-C. It has been on main since #171 (f5444c5), is present at a42946e, and #289 does not change it.

Where, on main a42946e:

• lanes-edit.sh:14473, in worktree_rows, calls lane_control_root "$wr_l" "dir ${wr_dir:-none}". wr_dir is the listing's column 7, whose quotes lane_row_facts has already stripped.
• payload_subfield (:6413) reads an unquoted value only up to its first space. A value that opens with " runs to its closing ".
• lane-start writes such a dir quoted (quote_subfield, lane-start:4106), and so does lane-handoff. The log is right; only this re-wrapped payload loses the quotes.

What happens: take a lane recorded with dir "/Users/x/My Projects/foo". Its control root becomes /Users/x/.lane-state/<lane>, the [ -d <root>/trees ] check fails, and the lane is skipped in silence, with no UNREAD, no PARTIAL and no warning:

• worktrees --all has no row for it, and worktrees <lane> exits 8 ("none");
• the inventory index never holds its trees;
• the named lane-trees <lane> does list them, because it reads the lane's log itself.

Evidence: the review's probe, section S, gives the same result at #289's f2723b1 and at main a42946e.

Fix, in one line: quote the value, as "dir \"${wr_dir:-none}\"". On #289's head the payload is wr_pay, which also reaches lane_trees_list and lane_state_read.

• It is safe because lane-start refuses a dir that holds " (lane-start:1427).
• The test would be a lane whose recorded dir has a space, which keeps its trees in worktrees --all and in the index.

Not claimed. This is outside lane 4's assignment, and it is filed for whoever Brett Heap names. #289 does not depend on it.

Lane: openRepoTools-4