DRAFT: amend 2003–2005 JTS PDFs against #7 curve stack

[grootstebozewolf]

Draft only. Base is feature/sfa-curve-rgr (PR #7 @ 8e39e39a). Do not merge this into #7. Do not retarget master.

Replaces the three in-tree 2003–2005 PDFs in place (same paths). No product code. Source of truth is the #7 tree only. #45 is not a source.

What each PDF now says that the 2003–2005 copies did not:

doc/JTS Developer Guide.pdf

• Curve types on this tree: CircularString, CompoundCurve, CurvePolygon (plus MultiCurve / MultiSurface). Opt-in CurveGeometryFactory — default factory throws; constructors do not linearise.
• WKT: CurveWKTReader / CurveWKTWriter. Core WKTReader still rejects SQL-MM keywords.
• WKB 8–12 read in core; write via CurveWKBWriter; a bare WKBWriter.write still emits type 2 (CircularString / CompoundCurve) or 3 (CurvePolygon).
• Overlay type is OverlayNGCurve (never OverlayNGCurved). No public noder. Closed-form constructions: certified discs and the single-arc hull. Open-arc buffer is BufferOp on chords.
• D-HF via 0ca71b (on SFA/SQL-MM curve awareness: Curve rename, arc-aware operations, OverlayNGCurve ratchet (#1195 RGR series) #7): public DiscreteHausdorffDistance closed-form for two pairs only — single-arc CircularString → single-segment LineString, apex √949/6 − 7/6 ≈ 3.967641; two circular discs. MultiSurface unwrap of one disc is the same pair. Public DHD still sees chords in general. fail() stays. Densify is not the laser. Fréchet still open.
• Licence is JTS dual EPL-2.0 + EDL-1.0.

doc/JTS TestBuilder & TestRunner User Guide.pdf

• Current startup (JTSTestBuilder.jar, JTSTestRunnerCmd) and org.locationtech.jts* packages, not the 2005 four-jar classpath / com.vividsolutions entry points.
• TestBuilder on SFA/SQL-MM curve awareness: Curve rename, arc-aware operations, OverlayNGCurve ratchet (#1195 RGR series) #7 draws CircularString, CompoundCurve, CurvePolygon; WKT apply uses CurveWKTReader.
• ACME licence appendix replaced with the actual JTS dual licence.

doc/JTS Technical Specs.pdf

• Concrete CircularString / CompoundCurve / CurvePolygon and a WKB 8–12 table (read in core; write via CurveWKBWriter; bare writer still 2/3).
• Disc hull and single-arc hull as the closed-form hulls on this tree.
• OverlayNG for linear; OverlayNGCurve for the curve subset; no public noder.
• D-HF section with the two-pair lock from 0ca71b above.
• No clothoid DOI.