Implement native phase fields, static control, and field reflection

[julia-script]

Native static functions and control flow, sealed phase fields, authenticated field reflection and ordinary borrowed field projections are implemented. Recursive evaluation separates cold preparation from hot recursive paths while preserving ownership, charging, diagnostics and rejection behavior. The depth probes that previously crashed now produce their exact expected results on a normal 8 MiB stack with the default depth limit of64.

Merged as522d020dc6e5770f5fd59bfbceb02c4d26703bac from authored head87ba66a1916e02e3f1f0dbc6a687c2a4a190b125, treeee9a96b4a92891023b8dc6bd87a0dc7f926103ff. That canonical push completed with688 passing source cases and one stale checked-helper cache assertion, owner coordinator/#1413; corpus410PASS/0FAIL/9UNSUPPORTED and N0/restore/N1 SUCCESS. #1413 is merged as3682c9e6: the repaired actor passes with C7 and the published bootstrap, its exact authored CI is fully green, and actual N0/N1 mandatory5/depth8/ownership36 plus N1examples11 repeat PASS. Only one unrelated test helper and documentation change; production compiler inputs are byte-identical. Final canonical push 38096140527 is fully green: N0/restore/N1, all689 source tests/0FAIL/0cached, corpus410PASS/0FAIL/9UNSUPPORTED and Focused Linux SUCCESS. No known current compiler miscompile or crash remains.

Validation:

• Exact authored-head CI38091478643 is fully green: N0, restore,N1, corpus and FocusedLinux SUCCESS; expected PR case-matrix skip. Corpus410PASS/0FAIL/9UNSUPPORTED. All executed jobs use default ubuntu-24.04 GitHub Actions runners.
• Actual N0artifact11684761835 and N1artifact11684752614 are verified against real CIexport67653f5a, all372 compiler/stdlib bytes and modes, published main46a bootstrap, pinned toolchain and unchanged raw receipts. Both generations PASS mandatory5, all8 normal-stack depth probes and original32+fresh4 ownership controls, preserving exact exits/negative codes and spans/SEM0180 rejection spans with zero signals. N1 additionally PASS all11 authored examples with exact exits and quiet runtime. All sources,177 regular stdlib files, fixtures, harnesses, compilers and raw receipts remain stable; N1 retains its true N0 producer and original sourceCommit/generation/stages0/0/42.
• Complete C7 build from committed e38b0c93: build0 in186.867s, peak4,748,504KiB, all15 authored actors PASS/run42/empty runtime stderr/no signals, all377 full inputs and modes stable. The canonical ancestry merge e3b03a5f leaves that complete tree unchanged; actual execution receipts retain e38b0c93. All15 actor files, assertions, headers, helpers and harness remain byte-identical to the preceding passed snapshot.
• Actual-public bootstrap guard PASS33commits. Containment verifies372 public inputs/full filesystem and Git modes/proper parents/private-public tree identity, six superseded actors and reachable helpers, production helpers, canonical PAPERCUTS prefix+25 unique physical rows. Canonical522d/public87ba/actualCIexport676 source continuity is proved without relabeling any generation.
• All66 supplemental ownership files match frozen hashes and permissions. Current87ba runtime controls were executed independently on both verified generations; no previous-generation result was transferred.
• Canonical fixture repairs#1410/Align canonical semantic fixtures with current contracts and emitted MIR/LLVM #1411/Use named helpers for canonical Effect meet inspection #1412 are included. Their ten affected semantic actors PASS in a complete native build. The preceding canonical8dd push executed all676 authored source cases with0 failures/0cached across all nine shards, including all60 callable cases; N0/restore/N1 alsoSUCCESS. Admit phase-only aggregate fields and reject runtime uses #1376/Evaluate native static control in its checked argument and local context #1396 are closed unmerged with their claims/helpers preserved here.

Completed historical reds have explicit owners: bb7e/55a5 depth signals and canonical reflected-borrow-wrapper StaticViolation at memory/driver.silk150–180 belong to phase-fields/#1402, retired by the actual final gates and410/0/9 corpus. Bootstrap Effect-fixture SEM0199/private-payload failures belong to coordinator/#1412, retired by named helpers/public lifetime atom access and the complete60-case canonical callable success.

Remaining limits: nine documented HTTP/socket typed-form/effect-lowering fronts, owner compiler backend follow-up/coordinator; bootstrap loop-varying static selection rejects SEM0176 while full per-iteration selection remains open; native borrow-check SILK_GAP diagnostics remain visible; Julia's#1359 invalidation and reference failure-identity erasure decisions remain pending. No stack increase, depth reduction, compatibility adapter, acceptedFailures or quarantine change. Manual old/superseded CI cancellation is blocked by the missing connector Actions cancel endpoint; selfhost pushes are never manually cancelled.