feat: convert account tracker to typescript

[cryptodev-2s]

Description

Convert AccountTracker (implementation + tests) to TypeScript

Related issues

Fixes: #25928

Manual testing steps

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[metamaskbot]

Builds ready [1b07a49]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5
  • common: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1629 ± 70 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	194	2202	1494	420	201
		domContentLoaded	1458	2016	1596	132	63
		load	1466	2104	1629	145	70
		domInteractive	13	170	45	44	21

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 831 Bytes (0.02%)
• ui: 0 Bytes (0.00%)
• common: 0 Bytes (0.00%)

[codecov]

Codecov Report

Attention: Patch coverage is 75.86207% with 14 lines in your changes missing coverage. Please review.

Project coverage is 69.99%. Comparing base (bc7929b) to head (1b07a49).

Files with missing lines	Patch %	Lines
app/scripts/lib/account-tracker.ts	75.86%	14 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #27231      +/-   ##
===========================================
- Coverage    70.02%   69.99%   -0.03%     
===========================================
  Files         1443     1443              
  Lines        50164    50172       +8     
  Branches     14039    14046       +7     
===========================================
- Hits         35126    35115      -11     
- Misses       15038    15057      +19     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[metamaskbot]

Builds ready [f47e2cd]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5
  • common: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1744 ± 107 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1485	2442	1753	239	115
		domContentLoaded	1478	2253	1718	213	102
		load	1486	2339	1744	222	107
		domInteractive	14	95	39	20	10

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 831 Bytes (0.02%)
• ui: 0 Bytes (0.00%)
• common: 0 Bytes (0.00%)

[sonarqubecloud]

Quality Gate failed

Failed conditions
75.3% Coverage on New Code (required ≥ 80%)

See analysis details on SonarCloud

[metamaskbot]

Builds ready [49410d3]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6
  • common: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1812 ± 92 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	338	2233	1643	446	214
		domContentLoaded	1606	2392	1789	183	88
		load	1614	2411	1812	191	92
		domInteractive	14	77	41	17	8

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 831 Bytes (0.02%)
• ui: 0 Bytes (0.00%)
• common: 0 Bytes (0.00%)

[NiranjanaBinoy]

LGTM

[MajorLift]

LGTM!