[david-Darkcollective]

Adopts the engine changes in DarkCollective/relix-core#102 (published as 1.0.0-SNAPSHOT) and removes the workarounds that were waiting for them. One commit per change:

• Re-enable the test that a blocking operator over an unbounded input is refused. Follows Refuse a blocking operator over an unbounded Relix.input at plan time relix-core#98. The test Output formats and pipe discipline, and data inputs with -i #34 disabled now runs for both τ and γ and checks that the error says the input is unbounded. δ isn't in the test because it streams by design.
• Print relix fmt's output with the engine's script printer. Follows Keep comments, and offer the ASCII spelling, when printing a script relix-core#99. fmt prints ScriptPrinter.print(Relix.parse(text, source), spelling) and still aligns inline tables. The command no longer scans for comments or respells glyphs one token at a time, and ScriptText keeps only the scan that finds where each statement ends. Statements with a comment inside them are now formatted too; a new test covers that. The examples are still formatted idempotently, with the same statements and every comment kept, in both spellings.
  • Known gap: the engine's printer drops a blank line between a comment and the statement or namespace that follows it. For example, a header comment, then a blank line, then namespace …; comes out with no blank line. A disabled test (FmtTest.Layout.blankAfterComment) records this until relix-core fixes it.
• Print every relix optimize rewrite, now that each one parses. Follows Relation.render() of an optimised CLOSURE writes a seed the parser cannot read relix-core#100. The per-rewrite parse check, the fallback that left a query as written, and its warning are gone. The introspection example's seeded-closure query is now rewritten, and the test checks that output with relix check. The existing test that the optimized examples return the same rows still passes.
• Look relix doc's pages up in relix-docs' ReferenceLookup. Follows Move the reference lookup into relix-docs: functions and front-end pages in one index relix-core#95. DocIndex duplicated ReferenceLookup, so DocIndex and its test are removed. relix-cli has no reference pages of its own, so it passes no extra pages. The relix doc tests in ManagementCommandsTest still cover lookup by glyph, keyword and name, the fix collision, the listing, and every key.

Not changed: DarkCollective/relix-core#101 (a parameter's text read as its analysed type). Nothing in relix-cli binds parameters yet, because -a NAME=VALUE (#14) isn't built. When it is, it can pass the text through and let the engine convert it.

./gradlew build --refresh-dependencies passes.