Add migration-5-to-7 module: Hibernate 5.6.15 vs 7.4.14 jar diff, compile checks, schema defaults and cheat-sheet snippets

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01YPgGH6aMbSLANL3E2HHmS6
2026-10-25 19:17:24 +00:00
parent 357ba84e5c
commit aea104f021
57 changed files with 5187 additions and 0 deletions
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+persist(a)               -> id assigned on the object: 1
+find(Author, id)         -> Ann  (1 select)
+getReference(Author, id) -> initialized: false  (0 selects)
+merge(detached)          -> returns a different instance: true, name now Ann Smith
+findMultiple(ids 3)      -> 3 entries, missing id gives: null
+remove(a)                -> find afterwards: null