Add binary server event journal

[pcarrier]

Summary

• add a process-wide variable-length binary event ring with atomic fine-grained activation and low-throughput defaults
• instrument server, connection, protocol, extension, PTY, compositor, transfer, and error paths through conditional logging macros
• add the blit.events.v1 protocol and CLI for configuration, snapshots, foreground client tails, and detached server recordings
• make configuration updates revisioned and optionally conditional with --if-revision so temporary captures can restore safely
• allow live tails and detached recordings without arbitrary admission counts; batch queued live records up to 256 KiB
• report recording initialization and delayed write/flush failures with state, record/byte/loss counters, and errors
• encode headers on the stack, copy header plus payload directly into the byte ring, and allocate live records only when a receiver exists
• expose the event family to extension endpoints through the same stream machinery, matching their existing filesystem and process authority
• emit correlated CREATE2 request, session-lock, spawn, registration/refusal, and physical-reply-write stages
• support startup configuration and recording through BLIT_EVENTS_SIZE, BLIT_EVENTS, BLIT_EVENTS_FILE, BLIT_EVENTS_FILE_HISTORY, and BLIT_EVENTS_FILE_APPEND
• document the wire format, timestamps, lifecycle, failure behavior, access model, and CLI workflow

Verification

• ./bin/lint --check
• cargo test -p blit-remote --lib (329 passed)
• cargo test -p blit-cli --bin blit (153 passed)
• cargo test -p blit-server --lib (730 passed, 3 ignored)
• cargo test -p blit-server --lib events
• cargo clippy -p blit-remote -p blit-server -p blit-cli --all-targets -- -D warnings
• git diff --check

[indent]

Issues

Review closed.

CI Checks

2 CI checks failed on 7d9e5c0.

e2e

• e2e finished with failure.

lint

• lint finished with failure.

[github-actions]

Coverage

Crate	Lines	Functions	Regions
alacritty-driver	75.7% (934/1234)	78.7% (74/94)	79.0% (1521/1926)
browser	0.0% (0/825)	0.0% (0/69)	0.0% (0/1404)
cli	40.0% (6227/15563)	46.0% (619/1346)	40.9% (9702/23715)
compositor	35.1% (6045/17209)	49.8% (502/1009)	34.9% (8309/23786)
desktop	78.7% (4409/5605)	71.9% (388/540)	75.4% (6119/8120)
fonts	85.3% (756/886)	89.9% (71/79)	86.4% (1485/1719)
fssync	92.5% (5515/5961)	94.4% (501/531)	92.7% (10180/10981)
gateway	35.1% (698/1990)	40.6% (69/170)	32.1% (1059/3303)
git	87.7% (4646/5295)	90.5% (379/419)	87.6% (7414/8463)
guest	82.8% (2347/2836)	80.5% (265/329)	81.4% (3911/4805)
lsp	77.2% (2688/3483)	79.4% (262/330)	74.9% (4210/5619)
proxy	19.2% (172/898)	20.5% (26/127)	21.0% (293/1392)
remote	91.7% (18064/19694)	94.7% (1270/1341)	89.4% (29290/32748)
sd-notify	73.9% (68/92)	100.0% (6/6)	83.2% (109/131)
server	58.7% (35520/60536)	65.7% (3053/4647)	60.1% (54269/90237)
ssh	32.2% (165/512)	48.2% (27/56)	31.4% (261/830)
upsidedown	31.4% (391/1247)	27.8% (55/198)	34.8% (797/2287)
webrtc-forwarder	8.5% (238/2805)	10.7% (22/205)	6.3% (289/4595)
webserver	65.1% (1288/1978)	67.6% (177/262)	67.2% (2159/3214)
Total	60.7% (90171/148649)	66.0% (7766/11758)	61.7% (141377/229275)

[blacksmith-sh]

Found 16 test failures on Blacksmith runners:

Failures

Test	View Logs
[chromium] › tests/ mobile-keyboard.spec.ts:200:5 › a tap while the keyboard failed to rise retries instead of hiding	View Logs
[chromium] › tests/ mobile-keyboard.spec.ts:256:5 › the switcher stays in view when the keyboard pans the v isual viewport	View Logs
[chromium] › tests/ mobile-keyboard.spec.ts:293:5 › key-line taps cancel the touch so the keyboard stays up	View Logs
[chromium] › tests/ mobile-keyboard.spec.ts:362:5 › the icon's keyboard survives focus landing on a surface canvas	View Logs
[chromium] › tests/ mobile-keyboard.spec.ts:455:5 › iOS hops focus through a host when the target already h olds it	View Logs
[chromium] › tests/ mobile-keyboard.spec.ts:61:5 › keyboard rises only from the toggle and the key line tra cks it	View Logs
[chromium] › tests/ pane-solo.spec.ts:117:7 › Pane solo › a single-pane layout offers no solo ──	View Logs
[chromium] › tests/ panel-subscriptions.spec.ts:96:7 › side panel subscriptions › a parked terminal is unsu bscribed while the preview panel is closed	View Logs
[chromium] › tests/ terminal.spec.ts:94:7 › Terminal › Switcher offers a Search action that opens the searc h panel	View Logs
[chromium] › tests/ touch-draggables.spec.ts:178:7 › Touch drag on list rows › holding a dock card drags it into the main view	View Logs

...and 6 more test failures. View all on Blacksmith

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