Fix remaining correctness issues from Jesper's 2026-09-15 re-review

- dimension-management-wiring: SaveDefaultDim's third argument is the
  shortcut dimension number (1-8), not the field's AL field ID; the
  fixture passed FieldNo(...) = 10. GetDefaultDimID's InheritFromDimSetID
  must be 0 when recomputing after the linking record changes, not the
  document's existing Dimension Set ID (which would retain the previous
  customer's leftover dimensions). Verified against
  DimensionManagement.Codeunit.al and BankDepositHeader.Table.al in the
  BCApps reference clone.
- check-post-line-batch-pattern: "Post Line writes exactly one line to
  the ledger" overclaimed - Gen. Jnl.-Post Line alone calls InsertGLEntry
  from a dozen call sites (balancing entry, VAT, currency rounding,
  deferrals) and can write several G/L Entries per journal line.
  Reworded to "posts exactly one journal line" and softened the
  "distinct, non-overlapping responsibilities" absolute.
- namespace-must-be-verified-from-source.bad.al: dropped the "resolves
  in a local build, fails in VS Code" comment (taught an inherent
  compiler/language-server disagreement that isn't real); reframed as
  stale/cached symbols, matching the prose fix already made.
- file-datatype-saas.good.al: replaced the deprecated 5-argument
  UploadIntoStream overload with the current 2-argument one, and
  actually staged through TempBlob as the article's own Best Practice
  instructs (the declared TempBlob variable was previously unused).
- test-data-must-be-random-and-complete: no longer treats a
  short-but-valid value as defective merely for being "underfilled" -
  AL field lengths are maxima, not minimums. Scoped to missing values
  or a scenario with an explicit length/format requirement (e.g. a
  truncation test). Updated the al-testing-review.md routing cue to
  match.
- stored-derived-fields-must-not-be-exposed-directly: stopped mandating
  source-field exposure as part of the core pattern: the good fixture
  exposed only one of the derived value's two inputs (Hours Used, not
  Budgeted Hours), making the claimed "so the consumer can verify it"
  impossible. Reframed as an optional, all-or-nothing addition and
  fixed the fixture to expose both inputs.

Rebased onto upstream/main to resolve conflicts in
al-breaking-changes-review.md, al-data-modeling-review.md,
al-performance-review.md, and al-style-review.md against merged PRs
#148 and #153; all sides' worklist tokens/cues retained.

microsoft/skills/review/al-testing-review.md

@@ -51,7 +51,7 @@ The following targeted checks cover every current `testing` article. Treat each
 - Test fixture code manually calls `Init`/`Insert`, invents keys or prerequisite records, or bypasses available `LibrarySales`, `LibraryPurchase`, `LibraryERM`, `LibraryInventory`, `LibraryRandom`, or equivalent library codeunits — `use-library-codeunits-for-test-fixtures`.
 - `asserterror` is added or changed without a following `Assert.ExpectedError`, `Assert.ExpectedErrorCode`, or a purpose-built assertion such as `ExpectedTestFieldError` — `asserterror-needs-expectederror-and-code`.
 - A test path raises UI and `[HandlerFunctions(...)]` does not match the invoked handlers, or the test has no meaningful evidence of the UI result (for example, it treats a Boolean set before the action as proof of success) — `ui-handlers-in-tests`. A capture/reset/assert-after-`RunModal` pattern is valid. Enqueue/dequeue and `AssertEmpty` are required only when order, count, text, replies, or a scripted sequence is part of the contract. Only nonoptional handlers have to execute: a listed handler declared `[SendNotificationHandler(true)]` or `[RecallNotificationHandler(true)]` is optional by design, so do not treat it as unmatched when the run never raises the notification.
-- A test's `[GIVEN]`/setup looks up a hardcoded code/number/name assumed to already exist instead of creating it, leaves a mandatory field on a created record empty or under-sized, or a scenario-defining value (amount, quantity, percentage, date, threshold, rounding precision) is generated/randomized instead of an explicit chosen value — `test-data-must-be-random-and-complete`. Generating incidental fixture values (identifiers, names, descriptions) via the standard library codeunits is the compliant shape, not the signal to flag.
+- A test's `[GIVEN]`/setup looks up a hardcoded code/number/name assumed to already exist instead of creating it, leaves a mandatory field on a created record empty, uses a value that doesn't satisfy the scenario's own explicit length/format requirement (for example a truncation test whose value never exceeds the field), or a scenario-defining value (amount, quantity, percentage, date, threshold, rounding precision) is generated/randomized instead of an explicit chosen value — `test-data-must-be-random-and-complete`. Generating incidental fixture values (identifiers, names, descriptions) via the standard library codeunits is the compliant shape, not the signal to flag, and neither is a short-but-valid value in an otherwise-unremarkable field.
 
 Once the candidate worklist is known, resolve layer-precedence conflicts per READ. Drop lower-precedence files whose normative guidance (`## Best Practice` or `## Anti Pattern`) directly contradicts a higher-precedence candidate, and record each dropped file in `suppressed` with `reason: "layer-precedence"`. Files that would have been candidates but are hidden because their layer is disabled in consumer configuration are recorded with `reason: "configuration"`. Files that never became candidates are NOT recorded in `suppressed`.