Add generic Compute kernel foundation

[Valessc2]

S15-S19

Adds the first larger framework-independent Compute jobs without taking ownership of bot strategy semantics.

• S15: deterministic linear target-score selection with explicit tie semantics
• S16: full-grid reference and bounded radial influence candidate with exact shared contract
• S17: reusable pathing workspace with Dijkstra baseline and Manhattan A* challenger modes
• S18: generic footprint-mask placement/filtering over caller-provided buildability grids
• S19: minimal continuous combat exchange over caller-supplied effective HP/DPS, explicitly not an SC2 simulator
• neutral grid views and comprehensive correctness/equivalence fixtures
• development status updated to distinguish implementation from runtime/performance certification

Cheapness / correctness

The larger native boundary is not assumed to win. Influence keeps an exact reference implementation. Pathing exposes Dijkstra as reference mode and retains workspace capacity across calls. Placement and score selection use caller-owned outputs/data. Combat refuses to encode unproven weapon/armor assumptions.

Validation

Draft until Release CI passes C++ and Python integration on Ubuntu and Windows.