docs(reverse): restore named mechanism state machines

Transcribe the claw and flipper control flow into an address-mapped readable companion while preserving unresolved fixed-point projection as an explicit boundary.

Correct the reconstruction ledger so the current Rust claw is not described as proven parity.

Test Plan:
- git diff --cached --check
- Review restored constants and branches against TDKPIN_GHIDRA_RAW.c

tdkpin-rs/RECONSTRUCTION.md

@@ -25,7 +25,7 @@ implementation.
 | Playfield collision layout | Recovered | All 109 active type-2 line objects and 40 static active type-1 circles are transcribed from the original 175-object registration table. The registration routine converts its sideways inputs with `screen = (y, x - 20)` and accumulates explicitly relative objects. Its circle sizes are complete center-contact extents, so the rendered ball radius is not added a second time. Object 174 is omitted because the original overwrites it with the live ball every frame. Moving flippers use equivalent native Rust bodies. |
 | Ball launcher | Recovered | The initial 32-bit fixed-point coordinates decode to `(325, 413)` in the right shooter lane. Scan code `0x50` compresses the eleven frames in resource 901 while Down is held; the key-release routine activates the ball with the accumulated vertical launch velocity. |
 | Physics arithmetic | Reimplemented | The Win16 fixed-point/timer engine is replaced by deterministic fixed-step floating-point integration. Restitution and impulses are tuned to the recovered table but are not instruction-for-instruction equivalents. |
-| Rules | Behaviorally recovered | Player count, controls, wheel holes, magnetic saves, robot grip, four-position ball lock, target banks, increasing bumper value, nine-part TDK diamond, permanent double scoring for a completed diamond, KByte media progression, and media extra balls follow the original help and code paths. |
+| Rules | Partly recovered | Player count, controls, wheel holes, magnetic saves, four-position ball lock, target banks, increasing bumper value, nine-part TDK diamond, permanent double scoring for a completed diamond, KByte media progression, and media extra balls follow the original help and code paths. The claw state machine has now been recovered in readable form, but its raw release-coordinate projection is still being decoded before the Rust behavior can claim parity. |
 | Numeric scoring | Partly inferred | Visible 2000-6000 target values and recovered registration values are preserved. Some bumper, bank-completion, robot, wheel, lock, and media thresholds are best-evidence reconstructions because the decompiler did not recover meaningful names or a clean rule table. |
 | High scores | Compatible import | The original 276-byte table is decoded as ten `IWIK`-XOR-obfuscated little-endian scores plus ten 22-byte names, sorted, then migrated to portable JSON. |
 | Configuration | Behaviorally compatible | Sound, language, and five detail levels are retained. Storage moves from a local Win16 INI file to the platform user-data directory. |