nx_nishios_browser_input.nx

nx_nishios_browser_input.nx -- BROWSER-ON-ALL-OS arc, rung N2: the Nishi browser is USED on NishiOS. N1 (nx_nishios_browser) proved the browser RENDERS on NishiOS. This rung proves INPUT + NAVIGATION: the OS delivers a click at the desktop point over a link in the rendered page; the browser maps it to page coordinates, hit-tests it with the SAME br_hit_link the Linux/Windows browsers use, resolves the href, loads the target page from the OS content store (disk), re-lays-out and re-renders -- a real browse interaction (click a link -> the page changes), frame0/frame1 exported as BMPs. KAT: T1 booted off the persisted image; T2 LONG mode; T3 start page laid out; T4 the OS click HITS the link box (br_hit_link==1); T5 the resolved href is exactly '/wiki/'; T6 the target page laid out; T7 the target page rendered (h1 bar pixels in frame1); T8 frame0 and frame1 DIFFER across the window region (navigation visibly changed the page); T9 both BMPs exported at the exact expected size. NEG/liar-kill: T10 a click at a NON-link point hits nothing (no navigation -- input evidence is box-sensitive, not a constant); T11 a 0-sector-load sibling image never reaches long mode -> no frame is ever drawn. HONEST SEAM (same class as nx_nishios_events/kbd): the click SOURCE is scripted (a live PS/2 controller on the emu = the hardware rung); the click HANDLING (desktop->page mapping, br_hit_link, href resolve, load, re-render) is the real browser input path. Navigation loads from DISK (the OS content store); NishiOS-native network fetch = rung N3 (nx_nishios_net), named not claimed. NEVER-BRICK (Rule 26): writes FILE artifacts only; models INT 13h *reads*; no /dev. expect_exit: 0 license_tier: ORIGINAL