How can I recursively query a table containing LTREE to get the tree like structure when some of the parent paths are missing?

Lets say I have this table:

CREATE TABLE nodes (node_path ltree);INSERT INTO nodes VALUES ('Top.Science');INSERT INTO nodes VALUES ('Top.Science.Astronomy.Astrophysics');INSERT INTO nodes VALUES ('Top.Science.Astronomy.Cosmology');INSERT INTO nodes VALUES ('Top.Hobbies');INSERT INTO nodes VALUES ('Top.Hobbies.Amateurs_Astronomy');INSERT INTO nodes VALUES ('Top.Collections.Pictures.Astronomy');INSERT INTO nodes VALUES ('Top.Collections.Pictures.Astronomy.Stars');INSERT INTO nodes VALUES ('Top.Collections.Pictures.Astronomy.Galaxies');INSERT INTO nodes VALUES ('Top.Collections.Pictures.Astronomy.Astronauts');INSERT INTO nodes VALUES ('Top.Dislikes');CREATE INDEX ON nodes USING GIST (node_path);CREATE INDEX ON nodes USING BTREE (node_path);

Notice that following paths are missing in this table:

'Top''Top.Science.Astronomy''Top.Collections''Top.Collections.Pictures'

How can I recursively query this table to get the tree like structure (without those missing rows)?

If the paths were not missing, then the following query would get me the result:

with recursivebase as (  select node_path,          array[row_number() over (order by node_path)] as sort_path    from nodes    where nlevel(node_path) = 1  union all  select c.node_path,          p.sort_path||row_number() over (order by c.node_path)    from base p    join nodes c       on subpath(c.node_path, 0, -1) = p.node_path)select * from base order by sort_path;

But because the rows are missing, it breaks the chain. As a result, things like:

nlevel(node_path) = 1

subpath(c.node_path, 0, -1) = p.node_path

don't make sense.

How can I query this to get the tree?

Note that I posted a question on Stack Overflow and I think if I can get an answer to the above question, then I might be able to resolve my SO question too. This current question was born out of the SO question:

https://stackoverflow.com/questions/76658570/postgres-ltree-how-to-do-recursive-for-only-a-few-specific-rows