refactor: rename register symbol ω → φ

[tomusdrw]

Summary

• Rename PVM register symbol from ω (omega) to φ (phi) across the entire codebase to align with the latest Gray Paper revision
• Updates all user-facing labels, trace display, divergence details, host call descriptions, and comments
• Adds sprint-49 spec documenting the change

Changed areas

• Register labels (RegisterRow.tsx): φ0: through φ12:
• Disassembly (useDisassembly.ts): regName() returns φN
• Trace display (trace-display.ts): φ7 = ... and φN ← ...
• Divergence details (useDivergenceCheck.ts): φN: prefix
• Host call UI (HostCallTab.tsx, GasHostCall.tsx): φ₇ ← output preview
• Comments/docs: all host call handlers, fetch codec, storage utils, orchestrator

Test plan

• All 683 unit tests pass
• Build succeeds
• Lint passes
• grep -r 'ω' --include='*.ts' --include='*.tsx' apps/ packages/ returns no results

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[coderabbitai]

📝 Walkthrough

Walkthrough

This diff replaces omega (ω) register notation with phi (φ) notation throughout the web application and related packages, updating UI labels, test expectations, inline documentation, comments, and supporting utility functions consistently across components, hooks, and libraries.

Changes

Cohort / File(s)	Summary
E2E Integration Tests apps/web/e2e/integration-smoke.spec.ts, apps/web/e2e/sprint-03-instructions.spec.ts, apps/web/e2e/sprint-04-registers.spec.ts, apps/web/e2e/sprint-28-asm-raw-popover.spec.ts	Updated test descriptions, search logic, assertions, and variable names to expect φ notation instead of ω when validating register display and naming in various UI states.
Register Display Components apps/web/src/components/debugger/RegisterRow.tsx, apps/web/src/components/debugger/RegistersPanel.test.tsx	Updated rendered register label prefix from ω{index}: to φ{index}: in the component and adjusted test comments to reflect the new naming convention.
Trace Display apps/web/src/components/drawer/trace-display.ts, apps/web/src/components/drawer/trace-display.test.ts	Changed gas/register symbol prefix in trace formatting from ω to φ for ecalli header lines and register write lines; updated corresponding test assertions.
Host Call Components apps/web/src/components/drawer/HostCallTab.tsx, apps/web/src/components/drawer/hostcalls/GasHostCall.tsx, apps/web/src/components/drawer/hostcalls/LogHostCall.tsx, apps/web/src/components/drawer/hostcalls/StorageHostCall.tsx, apps/web/src/components/drawer/hostcalls/host-call-registers.ts	Updated UI labels and inline documentation for register references from ω₇, ω7–ω11, ω₇..ω₁₂ to corresponding φ variants; updated JSDoc for OutputRegisterMeta.
Disassembly Hook apps/web/src/hooks/useDisassembly.ts, apps/web/src/hooks/useDisassembly.test.tsx	Updated regName() function to return φ${index} instead of ω${index} and modified test expectations and docstring comments to reflect phi notation for register arguments.
Divergence Check Hook apps/web/src/hooks/useDivergenceCheck.ts, apps/web/src/hooks/useDivergenceCheck.test.tsx	Renamed register divergence field label from ω<i> to φ<i> in generated details tooltip; updated test assertions and label filtering logic to expect φ prefixed labels.
Utilities & Supporting Code apps/web/src/hooks/useDebuggerActions.ts, apps/web/src/lib/fetch-codec.ts, apps/web/src/lib/fetch-utils.ts, apps/web/src/lib/storage-utils.ts, apps/web/src/lib/storage-utils.test.ts	Updated inline documentation comments and FETCH_KIND_INFO descriptions to replace register symbol references from ω variants to φ variants; no logic changes.
Orchestrator & Specification packages/orchestrator/src/orchestrator.ts, spec/ui/sprint-49-register-symbol-omega-to-phi.md	Updated inline documentation for captureLogMemoryReads() register mapping notation and added new spec file documenting the completed register symbol rename initiative with verification criteria and commands.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 45.45% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely summarizes the main change: renaming the register symbol from ω to φ across the codebase, which is the primary objective of this pull request.
Description check	✅ Passed	The description is directly related to the changeset, providing a clear summary of the refactor, listing changed areas, and documenting the test plan with passing verification steps.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch td-omega-to-phi-rename

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@spec/ui/sprint-49-register-symbol-omega-to-phi.md`:
- Around line 94-104: The spec file is missing the required "Status:
Implemented" header and the acceptance criteria are ambiguous about
Unicode/search edge-cases; add "Status: Implemented" at the top of the markdown
and expand the Acceptance Criteria bullets to explicitly include (a) verify no
remaining "ω" in any .ts/.tsx source or test files using both literal and
Unicode-normalized searches, (b) confirm editors/CI search tooling handle
composed vs decomposed φ/phi characters, (c) explicit checks for φN notation in
ASM/disassembly, trace host-call headers and register writes (including the φ₇
glyph and φN: divergence prefixes), (d) a verification step that the host-call
output preview shows "φ₇ ←", and (e) a clarification that spec/ historical docs
must remain unchanged; update the ambiguous sentence about not updating spec/
directory to an explicit requirement so implementers and CI know what to verify.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 34b32aaa-fb5a-4ff9-ae9e-3c95a2ef8ebb

📥 Commits

Reviewing files that changed from the base of the PR and between af91e73 and c9b0265.

📒 Files selected for processing (24)

• apps/web/e2e/integration-smoke.spec.ts
• apps/web/e2e/sprint-03-instructions.spec.ts
• apps/web/e2e/sprint-04-registers.spec.ts
• apps/web/e2e/sprint-28-asm-raw-popover.spec.ts
• apps/web/src/components/debugger/RegisterRow.tsx
• apps/web/src/components/debugger/RegistersPanel.test.tsx
• apps/web/src/components/drawer/HostCallTab.tsx
• apps/web/src/components/drawer/hostcalls/GasHostCall.tsx
• apps/web/src/components/drawer/hostcalls/LogHostCall.tsx
• apps/web/src/components/drawer/hostcalls/StorageHostCall.tsx
• apps/web/src/components/drawer/hostcalls/host-call-registers.ts
• apps/web/src/components/drawer/trace-display.test.ts
• apps/web/src/components/drawer/trace-display.ts
• apps/web/src/hooks/useDebuggerActions.ts
• apps/web/src/hooks/useDisassembly.test.tsx
• apps/web/src/hooks/useDisassembly.ts
• apps/web/src/hooks/useDivergenceCheck.test.tsx
• apps/web/src/hooks/useDivergenceCheck.ts
• apps/web/src/lib/fetch-codec.ts
• apps/web/src/lib/fetch-utils.ts
• apps/web/src/lib/storage-utils.test.ts
• apps/web/src/lib/storage-utils.ts
• packages/orchestrator/src/orchestrator.ts
• spec/ui/sprint-49-register-symbol-omega-to-phi.md