fix(history): join case-variant raw text to the history of the prompt it counts toward (#460) (#471)

* fix(history): join outer-whitespace raw text to the history of the prompt it saves (#438)

The Library stores text.strip() while a run keeps its exact raw text. The
history window, run detail scope id, newest pair run and prompt hints now
compare the raw text's stored form (one rule, utils/hashing.py, mirrored in
SQLite with the same code points). Hints also keep matching the exact raw
text, so older rows that kept outer whitespace stay hinted and protected.

* fix(history): join case-variant raw text to the history of the prompt it counts toward (#460)

The prompt hash folds case, so a run of "A Lighthouse" counts toward the
saved "a lighthouse" but never joined its history. History now compares the
hash's own key (prompt_key = strip + str.lower()); SQL calls Python for it
through pm_prompt_key/pm_prompt_hash registered on every managed connection,
since SQLite's lower() folds ASCII only. Hints match by text first (#438) and
fall back to the dedup hash only when no text matches, so no existing hint
becomes ambiguous. A history position from before this change still resumes.

* test(history): a real-host case-variant re-queue joins the prompt's history (#460)

database/models.py

@@ -38,6 +38,11 @@ from .review_schema import (
     review_without_annotations_error,
 )
 from .saved_views import migrate_saved_views, saved_views_schema_error
+
+try:
+    from ..utils.hashing import register_prompt_functions
+except ImportError:
+    from utils.hashing import register_prompt_functions
 from .image_categories import image_categories_schema_error, migrate_image_categories
 from .workflow_documents import (
     DOCUMENT_ID_COLUMNS,
@@ -153,12 +158,15 @@ def configure_connection(conn: sqlite3.Connection) -> None:
     (common on Windows) let other writers' polling busy handlers starve past
     BUSY_TIMEOUT_SECONDS and fail with "database is locked" (#242). Without
     WAL (for example an in-memory database) SQLite's FULL default is kept.
+    It also registers the prompt-key SQL functions (register_prompt_functions).
     """
     journal_mode = conn.execute("PRAGMA journal_mode = WAL").fetchone()[0]
     conn.execute("PRAGMA foreign_keys = ON")
     conn.execute(f"PRAGMA busy_timeout = {BUSY_TIMEOUT_SECONDS * 1000}")
     if str(journal_mode).lower() == "wal":
         conn.execute("PRAGMA synchronous = NORMAL")
+    # History reads and the live-hint rule call Python's prompt key (#460)
+    register_prompt_functions(conn)
 
 
 class PromptModel: